CHAPTER VII

DARWIN: THE SCIENTIFIC SPIRIT

I

Independently of his actual scientific work and discoveries, Darwin

is in so many respects one of the finest types of the scientific

spirit, that it seems natural to conclude a study of him with a

summary of the most important elements of that spirit, its admirable

and broadly valuable qualities and its limitations, as illustrated in

Darwin himself and in others as compared with him.

[Illustration: CHARLES DARWIN

About 1854]

The basis and fundamental motive of the scientific spirit is simply

and naturally curiosity, the endless and often merely wayward desire

to know and to find out facts, of all sorts. When the mind begins

to shake itself clear of the immediate, engrossing pressure of mere

subsistence, its first impulse is to learn something about the

surrounding universe and about itself. And this impulse is not solely

for utility, for the immense practical advantage which such knowledge

evidently brings with it. There is the instinct of occupation and

distraction, the effort to escape ennui and idleness and to fill

one’s thoughts with outward diversity that they may not be dragged

and weighed down by one’s own particular cares and troubles. There is

the instinct of emulation, the desire to excel others in knowledge,

if one cannot in wealth, or in success of practical achievement.

These are the motives of the collector, and in a sense the scientist

is a collector of facts, as others collect coins, or stamps, or

china, or old furniture. The impelling motives of curiosity and

excellence are much the same. There are people who gather and assort

clippings from the newspapers, for the mere collecting instinct

of it, gather them on all sorts of subjects, with the scientist’s

obscure impulse to accumulate knowledge even if they do not use it.

We are too apt to associate science exclusively with the study of

nature, and in this way the thought of the scientific spirit is

altogether too much restricted. Its real field is as vast as that

of human interests, and scientific methods and scientific purposes

apply as much to philology, to history, to religion, to the general

movements of human society, as to the curious consideration of

animals and plants and stones and chemical elements.

But if mere curiosity is to become truly scientific, it must be

broadened and deepened into research. That is, the simple collection

of facts must be systematized by a definite object and method.

The mere garnering of one fact and another here and there, though

it often has its great and singular charm, is apt to degenerate

into aimlessness and futility. It must be guided and solidified by

the sense of working toward some particular conclusion which will

give all the facts coherence and significance. In other words,

the relation of the facts must be studied, as well as the facts

themselves, they must be coördinated and subordinated, till their

real depth of meaning is revealed. How nicely does Darwin indicate

the proportionate connection between theory and observation in the

following passage: ‘_Let theory guide your observations_, but till

your reputation is well established, be sparing in publishing theory.

It makes persons doubt your observations.’[127]

Two of the supreme elements of research are completeness and

correctness. It is true that final completeness can rarely be

obtained in this world, but the important thing is to aim at it,

to leave no stone unturned, no nook unsearched, to gather every

possible fact from every possible source, before one allows oneself

to deduce positive conclusions, or conclusions that even approach

positiveness. And besides the completeness, one should test one’s

position from every aspect, to insure its being, so far as possible,

correct. No one but the trained scientific thinker appreciates

thoroughly the vast possibility of error, or is sufficiently aware

how apt error is to intrude its subtle and treacherous working into

the most careful investigations and the most logically buttressed

theories. In one of his immensely suggestive casual phrases Darwin

remarks, ‘The history of error is quite unimportant.’[128] This may

be true enough as regards the abstract progress of science, but

assuredly the history of error is of the highest interest to the

curious student of the human mind.

But neither curiosity nor even the ardor of research will go very

far, unless backed up by a habit of enormous and persistent industry.

It is not the showy spurts that count, the bursts of application for

a few weeks or months. It is the long, assiduous unbroken labor, such

as thousands of scientists are giving in hundreds of laboratories,

without prospect of distinction, without hope of immediate reward,

simply from pure love of the work itself. And this toil is expended

not only on the practical inventions, which are expected to produce

comparatively quick and often astonishing commercial results, but

on pure science, abstract investigation of speculative problems,

which even if solved, will not change the practical conditions of

life in the slightest degree. Although Darwin sometimes questioned

the wisdom of spending so many years on his petty barnacles, he knew

that the work was immensely valuable to him in the pure discipline

of labor. At any rate it taught him a profound and sincere respect

for those who were doing such work steadily, cheerfully, unendingly,

without looking to anything else whatever: ‘He would never allow a

depreciatory remark to pass unchallenged on the poorest class of

scientific workers, provided that their work was honest, and good of

its kind.’[129]

There are times when labor is attractive, when you feel like it and

like nothing else, and are ready to plunge into it with a furious

zeal. There are other times when you are dispirited and discouraged,

when the labor seems worthless and the effort impossible, or when

you have a sheer desire to drop it altogether and go play. Sir

Walter Scott, one of the great workers of the world, tells us that

if any one set him a task to do, even agreeable in itself, the

result immediately was an unbounded desire to do something else. The

real spirit of industry shows in sticking through these periods of

discouragement and distraction, and the worker who accomplishes is he

who does not heed them. It is one of the striking things about Darwin

that he kept up work all his life in this spirit, in spite of all

limitations and obstacles, and as a pure amateur in the best sense

of the word. It is true that he himself points out what a benefit

it was to him not to be professionally tied to any duties: ‘If I

had any regular duties, like you and Hooker, I should do nothing

in science.’[130] But it is also true that few men with plenty of

money, with plenty of temptation to amusement of every sort, would

have stuck to their chosen work with the ardor and also the long,

persistent system, which Darwin kept up to the end.

For patience is as necessary to the true scientist as industry. When

you think you are getting new facts, discoveries that will startle

the world and perhaps affect the practical living of millions, there

is a natural impulse to proclaim them, there is haste, eagerness,

the desire for reward, for recognition, for material success. Or,

there is the fear of anticipation, that some one else may be working

on the same lines, and get in before you, and all your glory will be

taken away. These considerations must be banished altogether. The

slow, deliberate processes of nature must be accepted and awaited.

If it takes years to develop the experiments that will, or that even

may, lead to the desired results, then you must accept the years,

unhurrying, unworrying, with the assurance that the work will be done

in the end and that it makes no difference to the world or to the

future, whether it is done by you or by another.

And with the patience goes caution, the determination not to state

results until you have confirmed them, not to overstate or give

them forms that are misleading. In practical life, the necessity of

acting at once often makes caution a dangerous luxury, and those

who hesitate and debate too long are apt to arrive too late or not

at all. A certain amount of chance and hazard must be taken and

accepted. But the beauty of these larger intellectual realms of

scientific thought is that you can wait calmly till all doubt and

error are eliminated. The lesson of moderation is hard to learn.

The best and the most careful never feel that they have learned it

thoroughly: ‘The subject has begun to interest me to an extraordinary

degree,’ says Darwin; ‘but I must try not to fall into my common

error of being too speculative. But a drunkard might as well say he

would drink a little and not too much.’[131] And elsewhere, after

years had weighted his work with the teachings of experience, he sums

up what seems to him one of the supreme needs of science, if not the

supreme need: ‘Forgive me for suggesting one caution; as Demosthenes

said, “Action, action, action,” was the soul of eloquence, so is

caution almost the soul of science.’[132]

Also, when you are testing so widely and carefully, and making sure

of your foothold before every step you take, you come to realize the

vast possibilities of different points of view. The one thing that

the true scientist dreads is fixity, positiveness. Nature is forever

mobile and flexible, and those who would follow nature and study her

and interpret her must welcome and imitate her flexibility. They must

be at all times ready to recognize the different aspects and phases

of the same fact or group of facts, and willing to accept different

conclusions with the changing and shifting light in which the facts

are viewed. As Professor Whitehead puts it, admirably: ‘Science is

even more changeable than theology. No man of science could subscribe

without qualification to Galileo’s beliefs, or to Newton’s beliefs,

or to all his own scientific beliefs of ten years ago.’[133] As I

read in an excellent article in a field of scientific research

very different from Darwin’s, that of philology and the emendation

of classical texts: ‘In emending these passages we should adopt

Pasteur’s method of investigation—exhaust every combination which it

is possible for the mind of man to conceive.’[134]

This impartiality, this breadth of view, this readiness to consider,

if not to accept, all conjectures and all theories, is comparatively

easy, when one is indifferent. If the motive of one’s investigation

is mere curiosity, and one has no doctrine to establish, no thesis to

defend, open-mindedness is facile and natural. But the scientific man

instinctively forms theories, and when once a theory is formed, there

comes the human impulse to maintain it, and to consider only those

arguments and even those facts that will bear one out. As we have

seen, it is here almost more than anywhere that Darwin’s example is

of abiding value. No man could be more attached to a theory than he

was to his. Yet he was determined, so far as human nature is capable

of it, to keep his mind open and not to let his preconceptions color

his observation or his reasoning. Huxley’s statement of the matter

is indisputably correct when he speaks of Darwin’s ‘sagacity, his

untiring search after the knowledge of fact, his readiness always

to give up a preconceived opinion to that which was demonstrably

true.’[135] And Darwin, in another of his simple, striking phrases,

condenses all that open-mindedness means, and the difficulty of it

and the rarity (italics mine): ‘If you argue about the non-acceptance

of Natural Selection, it seems to me a very striking fact that the

Newtonian theory of gravitation, which seems to every one now so

certain and plain, was rejected by a man so extraordinarily able as

Leibnitz. _The truth will not penetrate a preoccupied mind._’[136]

Finally, among these more impersonal elements of the scientific

spirit, a high place should be accorded to the quality of being

ready to admit one’s ignorance. In this age of universal ignorance,

most people who think are more or less aware of their deficiency,

but as we are naturally more appreciative of our own lack than of

that of others, the first impulse is a desperate effort to conceal

it. Perhaps of all states of mind one of the most hostile to the

scientific spirit and most incompatible with it, is pedantry, and

one of the most essential elements of pedantry is precisely this

disposition to conceal one’s ignorance, to make the most determined

attempt to hide from others the fact that we are as helpless and as

groping and as uncertain as they are. This is apt to be the vice

of the teaching profession, though so many teachers are gloriously

exempt from it. The pedagogue is inclined to think, I believe quite

wrongly, that if he once lets his scholars see that there is anything

he does not know, they will lose confidence in him forever, whereas

nothing establishes their confidence so much as to appreciate his

willingness to enter into their difficulties and to admit that the

difficulties are human and his own.

At any rate, the true man of science begins by admitting the

vastness of the regions that he has not entered and can never enter,

the illimitable fields of knowledge that he has not the time or

the training to explore. And no man was ever more notable in this

admission than Darwin. There is the general recognition of the

limits of human knowledge and human capacity for knowledge: ‘The

more one thinks, the more one feels the hopeless immensity of man’s

ignorance.’[137] There is the recognition of the hardening of the

mental arteries, so to speak, by which our flexibility is so greatly

impaired and against which we cannot guard enough: ‘nearly all men

past a moderate age, either in actual years or in mind, are, I am

fully convinced, incapable of looking at facts under a new point

of view.’[138] Further, there is not only the sense of general

intellectual impotence, but the admission that, even in one’s own

special line, there is much that one must necessarily miss, much

that must, if not invalidate one’s conclusions, at least render them

dubious and incline one to the extremest modesty in asserting them.

No doubt the peculiar nature of Darwin’s work, which obliged him to

touch upon all sorts of very different scientific fields, accentuated

this modesty of attitude, but no one can question that it was inborn:

‘There are so many valid and weighty arguments against my notions,

that you, or any one, if you wish, on the other side, will easily

persuade yourself that I am wholly in error, and no doubt I am in

part in error, perhaps wholly so, though I cannot see the blindness

of my ways.’[139] When one goes after the truth in that spirit, one

is much more likely to find it, and at any rate to teach the world

valuable lessons, whether one finds it or not.

II

Now to consider the more personal qualities of the scientific spirit,

that is those that affect human relations. Naturally it is not

pretended that all scientific men have these personal qualities, any

more than the qualities already indicated. Men of science are human

like the rest of us, and eminently liable to the weaknesses that

the rest of us have. Sometimes even they seem more liable, perhaps

because the impersonality of their occupation makes the personal

weaknesses stand out. But such weaknesses are obviously not a result

of the scientific spirit, but obtain in spite of it, and its higher

tendency should be to diminish or restrain them.

It is interesting, in this personal and human connection, to see how

the scientific qualities develop into virtues to some extent akin

to the Christian ideal. For example, the recognition and admission

of ignorance, on which we have been insisting, must carry with it,

should carry with it, the eminently Christian virtue of humility.

When you are oppressively aware how little you know, how far your

information is from being adequate and your conclusions from being

final, it is impossible to maintain a spirit of arrogance or

self-assertion. You turn to others for their agreement and support,

in the tone of Goethe’s remark that he felt immensely strengthened

in a conclusion if he found that even one other human being agreed

with him. Or, as Darwin puts it: ‘Though I, of course, believe in

the truth of my own doctrine, I suspect that no belief is vivid

until shared by others.’[140] The truly scientific worker should be

ready to defer to the opinion of his fellow-workers and instantly

to surrender his own when convinced that theirs is based upon wider

observation or more valid arguments.

Closely connected with humility is tolerance, and this virtue also

flows from the admission of ignorance almost as a necessity. If you

appreciate your limitations and that your knowledge is as incomplete

as your deductions are hazardous, you will be at all times ready to

recognize that others may be right and you may be wrong, and you

will have a gentle forbearance toward even what appear to be their

errors. ‘True science necessarily carries tolerance with it,’ says

Voltaire.[141]

To be sure, the mention of Voltaire in connection with tolerance

rather makes one smile, for if he fought for tolerance as for other

things, he fought hard and bitterly, and he was always fighting for

something. And in general it may well be urged that the history of

scientific thought shows anything but tolerance and gentleness.

Indeed it sometimes seems as if scientists were a peculiarly waspish

and petulant generation, apt to fly out, and to fly at, with what to

the ordinary mind hardly appears sufficient excuse. Darwin himself

appreciates this unfortunate tendency, and frequently deplores it:

‘How strange, funny, and disgraceful that nearly all ... our great

men are in quarrels in couplets.’[142]

But here again, it is human nature, in its inborn weakness and

self-satisfaction, that does the quarreling, and the scientific

spirit, taken in itself, certainly tends to quiet and lenify. In one

of his very latest letters Darwin wrote: ‘You have shown how a man

may differ from another in the most decided manner, and yet express

his difference with the most perfect courtesy. Not a few English and

German naturalists might learn a useful lesson from your example; for

the coarse language often used by scientific men towards each other

does no good and only degrades science.’[143] But it is difficult

for humanity to learn, and when it is learned to remember, the

profound truth expressed in the saying of Edmond Scherer in regard to

tolerance: ‘The fundamental dogma of intolerance is that there are

dogmas, that of tolerance is that there are only opinions.’

And tolerance, the mere recognition that others may be right and we

wrong, even as to our most cherished theories, when it is enlightened

by clearness of intelligence and warmed by sympathy, easily passes,

as we have seen with Darwin in an earlier chapter, into that most

delightful of all virtues, or more properly that root of all virtues,

the power and the instinct of putting ourselves in others’ places,

of entering into their lives. It is not quite enough to respect

others’ opinions, or even to defer to them. One should go further,

and endeavor to understand how they arrive at them, and to do this,

one should be ever alive to the vast community of human nature,

and the infinite threads and strands that bind together our hearts

and the hearts of even those who appear most different from us. It

is this power of comprehension, this effort at comprehension, of

others’ point of view, which leads to the wonderful gentleness of

tone that makes a great part of Darwin’s charm: ‘You are mistaken in

thinking that I ever said you were wrong on any point. All that I

meant was that on certain points, and these very doubtful points, I

was inclined to differ from you.’[144] It is evident that in arguing,

in discussing, Darwin always sought to understand his adversary’s

position, and in order to do this, to put himself entirely in his

adversary’s place.

The nature of science in itself tends to foster and encourage

this disposition to enter into the lives of others, because by its

abstract character and its larger aims and interests it inclines to

reduce as much as possible the elements of self, and of self-interest

and self-assertion. Indeed, here again it is curious to see how,

when the pursuit of scientific truth rises to its highest intensity

and white heat of ardor, it brings about a sort of self-abnegation,

which approaches and suggests the mystical self-abandonment of

Christian ecstasy. He shall leave all and follow me, says religion.

And we have seen something of the same spirit in Darwin’s apparently

colder declaration that the man of science should have neither wife

nor child, but a heart of stone, and a brain altogether free for the

vast, abstract researches which make the whole of his life.

There is indeed something almost religious in the passion with which

the true scientist casts aside all personal considerations, often

all considerations of comfort and ease and indolent enjoyment, in

the absorbing effort to attain the pure truth which he is seeking.

With what intensity of delight does one fling an old delusion behind

him. As Darwin puts it: ‘To kill an error is as good a service as,

and sometimes even better than, the establishing of a new truth or

fact.’[145] With what rapture does one become aware of the progress

of scientific thought: ‘How grand is the onward rush of science; it

is enough to console us for the many errors which we have committed,

and for our efforts being overlaid and forgotten in the mass of new

facts and new views which are daily turning up.’[146]

It is needless to say that thousands of others besides Darwin are

infected with this rapture, and to quite the same or an even greater

degree. In the dawn of scientific thought we have Lucretius, than

whom none was ever more ardent, exulting in his passionate effort to

dart the beams of intellectual day through the swirling, smothering

mist of error and delusion. Or again, in our own time we have such

excitement as is described by Pasteur, so nearly the correlative of

Darwin in many ways, when he feels himself to be on the brink of

discovery: ‘I was so happy that I was overcome by a nervous trembling

that made it impossible for me to bring my vision again to the

polarizing apparatus.’[147]

So the pursuit of pure truth, and the giving one’s life to the

achievement of it, elevates, and clarifies, and chastens, almost

like the pursuit of virtue, and the two tend even to merge in one

another, as in Goethe’s noble saying: ‘The real love of truth shows

itself in this, that one knows how to find and cherish the good

everywhere.’ Or to conclude with another of Darwin’s sentences, all

the more impressive for its simplicity and restraint: ‘For myself I

would however, take higher ground, for I believe there exists, and I

feel within me, an instinct for truth, or knowledge, or discovery, of

something the same nature as the instinct of virtue and our having

such an instinct is reason enough for scientific researches without

any practical results ever ensuing from them.’[148]

III

It seems to be of interest to consider one or two types of the

scientific spirit in lines quite different from Darwin’s. There

is Sainte-Beuve, to whom I have referred in earlier chapters. The

great French critic was almost exactly contemporary with Darwin,

being born in 1803 and dying in 1870. I do not discover that he

ever mentions Darwin’s books, though he must have known something

of them. In any case, he typifies admirably many of the scientific

methods and qualities, the vast curiosity, the research, the labor,

the patience, the passion for seeing all sides and allowing for all

points of view. Only, he was concerned, not with plants and animals,

not with the material, evolutionary world, but with the subtle phases

and motives and passions and developments of the human spirit. He

studied human life and character with endless curiosity and the

results of his study are embodied in the forty volumes of portraits

and in the seven solid volumes of the History of the Monastery of

Port Royal, one of the most profound and searching investigations of

religious psychology that has ever been made. Sainte-Beuve himself

liked to compare his work with the researches of the more specific

scientists. I have quoted earlier his brief statement: ‘I analyze, I

herborize, I am a naturalist of souls.’[149] And elsewhere he puts it

more elaborately, ‘It is absolutely as in botany for plants and in

zoology for the species of animals. There is a moral natural history,

with a method (as yet hardly developed), of the natural families of

souls.’[150] And he loved to analyze souls of all sorts, good and

bad, strong and weak, happy and unhappy, to analyze them and compare

them and classify them, and bring out in them the profound common

elements of human nature, under the endless play and diversity of the

superficial differences.

It is peculiarly interesting to watch in Sainte-Beuve, as in Darwin,

the working and the complication of the scientific spirit with

the more personal elements. Sainte-Beuve made much more definite

assertion than Darwin did, of sacrificing and effacing the personal

life for scientific purposes. The Frenchman boasted that he mingled

with all sorts of groups and associated himself with all sorts of

causes and experiences, not from devotion to the things themselves,

but from pure curiosity and from the passion for analyzing the

working of these causes in human minds. He carried this so far that

he was often accused of disloyalty to his friends and of espousing

causes and then deserting them, and he himself handles the defense of

the subjective attitude in such a way as to give some justification

for the charge. His life, his thought, his work, were perfectly

impersonal, he said, and in consequence he was epigrammatically

branded with betraying all truths for the sake of truth.

On the other hand, it is very evident that some personal elements

lingered about him much more than he thought or admitted. His early

ambition, his undying ambition, was to be a poet. As a poet he

failed, at least made no popular or conspicuous success. He saw

the ardent contemporaries and close associates of his youth, Hugo,

Lamartine, Balzac, Sand, Musset, making great popular reputations,

while he was compelled to drag along in comparative shadow; and for

all his boasted impersonality, this to a certain extent embittered

him. The vast comprehension, the high intellectual impartiality,

which distinguish him when he is dealing with the past, fail and

shrink in a measure when he discusses contemporary work, and you

cannot but feel that he is unconsciously hampered and tormented by a

jealousy from which Darwin was wholly and nobly free.

But what marks Sainte-Beuve’s work most of all, as I have elsewhere

emphasized, and what distinguishes him from Darwin and many other

notable scientists, is the extraordinary concreteness of it. He had

of course a vast background of general intellectual training and

experience and of conversance with general thought and principles.

But with this background always instinctively present, he devoted

himself directly to the study of individuals. Only rarely does he

deal in the discussion of theories of any sort, and then his handling

is apt to be so complex and difficult that you feel him to be out of

his element. What fascinates and absorbs him is the endless, close,

minute, sympathetic study of individual men and women, and just

because he is not hampered by theories, has no ends to attain nor

points to prove, the study is endlessly varied, flexible, mobile,

adaptable, and profoundly, inexhaustibly human. The incessant,

fruitful application of scientific method has never been better

exemplified than in Sainte-Beuve’s work.

Or, to take another of the broader types of the scientific spirit,

perhaps one of the noblest and most luminous that has ever existed,

Goethe. Goethe was a half century older than Sainte-Beuve and

Darwin, but he lived well down into their period and the clarity of

nineteenth century scientific thinking could find no better example

than he. His actual scientific work is far from contemptible, and

he to some extent anticipated Darwin as to the possibilities of

metamorphosis in the natural world. His speculations on the theory of

light, in contradiction to those of Newton, show at least the active

and energetic intelligence.

But Goethe’s value to the scientific spirit rests on far broader

grounds than any mere detail of scientific research or experiment.

No one cultivated or practiced more than he the attitude of vast,

unprejudiced curiosity, of eager search and relish for pure truth,

independent of all considerations of party, or consequence, or

practical bearing. It is this spiritual latitude which Matthew

Arnold means when he calls Goethe the greatest poet of his own time

and the greatest critic of all times. The free, broad, ample, mobile

working of the human intelligence has never found a more lucid

exponent than Goethe, and everywhere through his writings there are

passages which will help the lover of truth, while the distilled

essence of his mental attitude is to be found in the collection of

‘Maximen und Reflexionen,’ which gives the kernel of wisdom without

the somewhat otiose Teutonic wrapping of amplification in which

Goethe was often inclined to envelop it.

It is in the highest degree curious, remembering the weaknesses

of Sainte-Beuve to which I have already alluded, to read all his

numerous comments on Goethe, but particularly the following: ‘Goethe

understood everything in the universe—everything except perhaps two

things, the Christian and the hero. There was a weakness here which

belonged to the realm of heart. It seems likely that he considered

Leonidas and Pascal, the latter especially, as _monstrosities_ in

the order of nature.’[151] And Sainte-Beuve prided himself upon

understanding the Christian and the hero both, and it is probable

that he did.

The interesting point in Goethe, and also in less degree in

Sainte-Beuve, as compared with Darwin, is that the full development

of the scientific spirit in both of them did not exercise the same

sort of spiritual blight with which Darwin thought that it affected

him. No human being ever lived who was more susceptible to beauty

than Goethe was, and his passion for pure truth did not prevent his

retaining the highest sense of artistic ecstasy through his whole

long life. With him and with Sainte-Beuve both, it could hardly be

said that thinking came before emotion, for both of them adored the

incomparable beauty of form and the rapture that came with it up to

the very end.

On the other hand, neither Goethe nor Sainte-Beuve is for a moment

to be compared with Darwin in that ineffable sweetness and simple

charm which endeared him to all who came into contact with him and

which breathe everywhere through his letters and even his more formal

scientific works.

One striking feature in Sainte-Beuve is that he recognized fully

the absorbing, engrossing nature of the scientific spirit, yet

appreciated that the pursuit of knowledge does not necessarily bring

happiness. No one has expressed the barren desolation of mortal

life with more acrid bitterness than he. Shakespeare tells us that

ripeness is all. Sainte-Beuve doubts whether it exists. ‘Ripen?’ he

cries. ‘Ripen? We never ripen. We harden in some spots. We rot in

others. We ripen never.’[152] Years bring with them—for him—an utter

indifference to everything and everybody: ‘I have arrived in life at

a complete indifference: provided I do something in the morning, and

go somewhere at night, life has nothing more for me.’[153] And again,

life is nothing but the pricking of one illusion after another, till

one becomes bitterly convinced that no illusion is worth the pains

of being pricked. As he sums it up in a vivid figure: ‘Why I no

longer care for nature, for the country? Why I no longer care to walk

in the little footpath? I know well that the footpath is the same,

but _there is no longer anything on the other side of the hedge_.

In old times there was rarely anything, but always there might be

something.’[91]

It is true that Sainte-Beuve’s melancholy and disgust are closely

connected, as he himself admits, with the gross sexual disorders of

his celibate career, and he speaks of ‘the incurable disgust with

everything which is peculiar to those who have abused the sources

of life.’[92] In his later years he seems to have had no principle

of sexual restraint whatever, and to have indulged as freely in

indiscriminate commercial amours as did Pepys or Aaron Burr, though

he was as much without Burr’s gay oblivion as without Pepys’s

touches of remorse. He proclaims as a cynical creed his method of

seeking wisdom: ‘Like Solomon and like Epicurus, I have made my way

to philosophy through pleasure. It is a better road than traveling

thitherward by logic after Hegel’s or Spinoza’s fashion.’[93] And the

sum of the philosophy was akin to Solomon’s. ‘Sainte-Beuve said to

me,’ records Goncourt, ‘One should make the tour of everything and

believe in nothing. There is nothing real but woman.’[94] Solomon

would hardly have made the exception. The curious thing is that, with

all this abandoned personal license, Sainte-Beuve, in his critical

judgments, preserved the most delicate sensibility as to moral

excellence in sexual lines, as in all others.

When we turn to Goethe, we find perhaps little more regard for sexual

morals than with Sainte-Beuve, but at any rate a temperament far

better poised, and to all appearances charged and glorified with

luminous serenity. Yet with Goethe also the scientific spirit, even

though enriched with the artist’s delight and the artist’s creative

power, could not bring happiness in its train. The sorrows and

sufferings of Werther might perhaps be accredited to the extravagance

of youth. But in extreme old age we hear Goethe proclaiming the

emptiness and misery of life in terms almost as bitter and complete

as those of Sainte-Beuve or of Anatole France. ‘I will say nothing,’

he said to Eckermann, ‘against the course of my existence. But at

bottom it has been nothing but pain and burden, and I can affirm that

during the whole of my 75 years I have not had four weeks of genuine

well-being. It is but the perpetual rolling of a rock that must be

raised up again forever.’[95]

So far as we know, Darwin had no sexual cause of spiritual

disturbance, and his scientific pursuits obviously brought him

interest and delight. But we have seen how much even Darwin

complained that absorption in science stunted and atrophied the

higher sides of the spiritual nature. Work was largely a means

of forgetting life, and when work failed, Down cemetery became

singularly attractive. The pursuit of truth for itself, exciting

and engrossing as it may be, would seem to have something abnormal

and unwholesome about it and Pascal’s consolation for the reedlike

insignificance of man in the thought that he is a ‘thinking reed’

sounds a little chill and comfortless, even with Scherer’s

amplification about the glory of ‘the dream that knows itself to be

a dream, of thought that thinks itself.’ The final emptiness and

futility which at times appear to attach to the profoundest search

for truth have never been more grandly stated than in the words with

which Sainte-Beuve brings his vast history of Port Royal to a close:

‘I have been and I am only an investigator, a sincere observer,

attentive and scrupulous.... I have been after my fashion a man of

truth, so far as I have been able to attain it. But how little is

the best we can attain! How bounded is our vision and how quickly it

reaches its limit! It is like a pale torch lighted for a moment in

the midst of an enormous night. And he who most had it at heart to

know his subject, who had the keenest desire to grasp it, and the

greatest pride in treating it, most feels himself impotent and below

his task, on the day when, seeing it almost completed and the result

obtained, the intoxication of power fails him, the final exhaustion

and the inevitable disgust overwhelm him, and he perceives that

he too is but an illusion the most fleeting on the breast of the

Illusion which is infinite.’[96]

IV

And of course it is not contended that scientific men in general are

unhappy, which would be absurd. On the contrary, it is probable that,

with the infinite variety and solace of their pursuits, they are apt

to be an unusually contented and cheerful class of men. There is the

poignant saying of Voltaire, who was full of the scientific spirit as

of most others: ‘Study consoles for everything.’[97] And Montesquieu

expresses it more generally: ‘I have never had a sorrow which a half

hour of reading would not dissipate,’ and again, with more specific

elaboration: ‘The love of study is almost the sole passion that is

eternal in us; all the others fail as this miserable machine which

sustains them falls more and more into decay.’[98]

Yet for the mass of mankind assuredly the scientific spirit and the

pure pursuit of truth are not enough, and the abstract thought of

them leaves a void which only persistent, concentrated action can

fill up. We are living, moving, acting creatures, and for most of

us knowing, thinking, except as a means to living, is inadequate,

infertile, and essentially provocative of discontent. As Sterne’s

Yorick expresses it, in his homely, pointed fashion: ‘I think the

procreation of children as beneficial to the world as the finding

out the longitude.’[99] ‘I’ll do and I’ll do and I’ll do,’ cries the

witch in ‘Macbeth.’ It is the natural, universal, prevailing cry of

humanity, doing, doing, doing, till the end—and then, what? It skills

not to inquire.

And there is the further point, that not only too much abstract

knowing does not help for doing: it is apt to hinder. Especially, the

scientific virtue of the recognition of ignorance is far from being

a benefit in practical life. The best of doing, the best of action

is undoubtedly instinctive, flows by quick, unapprehended, processes

out of the vast subconscious accumulated storehouse of our being. The

supreme illustration of this is the achievement of the athlete. Watch

the complicated action of the highly skilled baseball-player. A dozen

intricate related movements are accomplished with sure, unfailing

speed, any one of which would be utterly dislocated and thrown out of

adjustment by the slightest attempt to analyze it on the part of the

player, who is usually disinclined to such analysis precisely in the

proportion of his practical skill.

And the same thing obtains to much the same extent in what might

appear to be more intellectual lines of practical action. The

soldier, the man of business, the statesman, all require no doubt

immense and competent detailed knowledge in their particular

professions. But here also too great analysis, a too curious probing

of motives and processes and alternatives and possibilities hurts

rather than helps. The pure thinker is too often apt to cry out

with Goethe’s horror: ‘There is nothing more frightful than active

ignorance.’[100] Yet nine tenths of the work of the world is done,

sometimes efficiently, sometimes haltingly, but done, by active

ignorance, and could not be done otherwise. The thinker, the profound

analyst, debates, hesitates, falters, and too often accomplishes

nothing.

It may be that, not only in the realm of muscular effort, but in all

practical action, the best results are obtained by comparatively

instinctive methods. Yet it is evident that deliberate conscious

reasoning is an important instrument in the work of the man of

affairs. Also, reason, the enchainment of thoughts through elaborate

logical processes, is the chief agent of the scientific spirit. In an

earlier chapter we have analyzed the dangers and betrayals of reason.

But the greatest betrayal of all is when reason turns upon itself

and devotes its brilliant, magnificent powers to self-dissection,

instead of to accomplishment in the practical world. The extreme

illustrations are in such minds as Sénancour, Maine de Biran, Amiel,

men naturally equipped for the performance of great things, but in

whom the force of genius is paralyzed by the perpetual introspective

consideration of the means and methods by which genius operates. As

Amiel expresses it: ‘I also feel at times the mad rage for life, the

desperate impulse to seize happiness, but much more often a complete

prostration and a silent despair. And whence comes this? From doubt

of my own reason, of myself, of men, of life, from doubt which

enervates the will and destroys the powers, which makes one forget

God, forget prayer, forget duty, from unquiet and corrosive doubt,

which renders existence impossible, and makes a ghastly mock of

hope.’[101]

Perhaps reason offers the most curious of all the antinomies or

self-contradictions which arise when one seeks to develop the

physical, mental, and moral nature of man, on an evolutionary

basis, from the fundamental instinct of self-preservation. A lesser

but striking form of this self-contradiction is, for example, the

habit of thrift, which is naturally explained as a tendency of

self-protection, yet in its sordid extremes may work to destroy

life rather than prolong it. Or, again, there are the strange

contradictions involved in the social instinct. As one sees it in

the insects, or in the gregarious grouping of the lower animals, the

self-preservational basis is obvious enough, and with a few wrenches

of excusable ingenuity one may put all human affections and devotions

on the same foundation. Yet in the end one arrives at the astonishing

paradox that the instinct of self-preservation has developed devotion

to others so that a man may be willing to lay down his life for his

friend, or even for those who are not his friends. But the extreme of

all these contradictions, if one accepts the evolutionary development

of reason, is that that marvelous instrument should be produced for

the preservation of the individual and yet that the final working

of it should be to show how utterly insignificant, pitiable, and

unworthy of preservation this very individual is.

Another weakness of the scientific spirit, and the curse of its

passion for truth, is the difficulty, not to say the impossibility

of ever attaining it. In the detail of scientific research this is,

perhaps, not an evil, and difficulty is merely a splendid spur and

stimulus to ever renewed effort and achievement. But when it comes

to profounder and more fundamental matters, the difficulty is more

serious, and if it may be justly said that one wearies of everything

except to understand, one wearies of the failure to understand more

than of anything else. After all, there are but two things that it

is really important to know: oneself and God. And it is precisely

in regard to these that the impossibility of final knowledge most

overwhelms us. In the rugged language of old Ben Jonson: ‘I know no

disease of the soul but ignorance; not of the arts and sciences, but

of itself.’[102] And a Greek, two thousand years before Ben Jonson,

gave vivid utterance to the same sufficiently obvious idea: ‘Many

things are obscure to man, but the most obscure of all is his own

soul.’[103]

It is precisely in this impossibility of attaining truth in the

ultimate things that the Fundamentalists find their justification for

the attempt to control the search for it. ‘You tell us,’ they say,

‘that everything must yield to the search for truth. You undermine

secure, established morals and traditions in the name of truth. Then

truth slips away from you and in the end you can offer us nothing but

a shadow and a dream. Accepted convention is at least a solid basis

for living. You have nothing solid to offer us, for any purpose,

anywhere.’ And the argument would have some validity, if the

inborn movements of great nature could ever be stopped by laws or

legislatures or Fundamentalists.

But, after all, the value of ignorance, or at least of the knowledge

of ignorance, which goes with the scientific spirit, lies in the

charming qualities that I have indicated earlier in this chapter,

tolerance, patience, humility, gentleness. Only, to produce these

qualities, the recognition of ignorance must not be aggressive,

combative. Fifty years ago such recognition was erected into a

dogmatic religion called Agnosticism, the triumphant, militant

assertion that no man knew anything about the fundamental verities

and no man could, and this dogmatism was even more exasperating than

other dogmatisms, because it purported to be based on an attitude

essentially undogmatic. The true, the fruitful, the profitable

recognition of ignorance is not dogmatic or assertive at all. It

is purely personal, begins and stops with _my_ ignorance only, and

lets _your_ ignorance altogether alone. This is peculiarly true and

important in the age of ignorance in which we live, the age which has

piled up general knowledge with such vast celerity of accumulation

that no individual can pretend to grasp more than a very small

portion of it. And all we can any of us say is, I do not know. You

may know, he may know, especially as he thinks he does, which goes so

vastly far, but I, I, I, alas, do not.

Agnosticism is too violent a word for this purely personal and

infinitely humble ignorance. Scepticism even is too proud a word,

too philosophical a word. Yet scepticism, if used with caution, may

perhaps serve, for want of a better. But there is one thing about

scepticism too often forgotten. Universal doubt surely carries with

it the privilege of universal hope. The professed sceptic is too apt

to be critical and cynical, to use his doubt simply to upset the

certainties of other people, and to rest always in the darker side of

possibility. But if anything may be true, surely the beautiful may be

true, the good, the joyous, the lovable, as well as the gloomy and

despondent.

And if the privilege of scepticism is hope, the essence of it is

questioning and questing. There is a doubt which, in its despair of

ultimate truth, is content to trifle, to beguile the misery of life

with jest and play and momentary diversion. Or there is the doubt

in deeper matters which, as with Darwin, turns to eager, assiduous

investigation of the mere, fascinating detail of the external world.

But there is also a doubt which lives in passionate, perpetual

earnestness and the unfailing, unyielding, indomitable effort to

find out God, being assured that without Him the universe, with all

its splendor and all its endless evolving glory, is nothing, merely

nothing. Such doubt will express itself in words like those of the

modern poet:

‘Day and night I wander widely through the wilderness of thought,

Catching dainty things of fancy most reluctant to be caught. Shining

tangles leading nowhere I persistently unravel, Tread strange paths

of meditation very intricate to travel.

Gleaming bits of quaint desire tempt my steps beyond the decent.

I confound old solid glory with publicity too recent. But my one

unchanged obsession, whereso’er my feet have trod, Is a keen,

enormous, haunting, never-sated thirst for God.’

THE END

BOOKS BY DARWIN, WITH THE ABBREVIATIONS USED IN REFERRING TO THEM IN

THE NOTES

The American revised edition is referred to, unless otherwise

specified

_A Monograph on the sub-class Cirripedia.—The Balanidæ—The

Verrucidæ._ _Cirripedia._

_The Descent of Man and Selection in Relation to Sex._ _Descent._

_The Different Forms of Flowers on Plants of the Same Species._

_Different Forms of Flowers._

_The Effects of Cross and Self Fertilization in the Vegetable

Kingdom._ _Cross and Self Fertilization._

Krause, Ernst, _Erasmus Darwin_ (translated from the German by W. S.

Dallas, with a preliminary notice by Charles Darwin). _Krause._

_The Expression of the Emotions in Man and Animals._ _Expression._

_The Formation of Vegetable Mould through the Action of Worms._

_Worms._

_Geological Observations._ _Geological Observations._

_Insectivorous Plants._ _Insectivorous Plants._

_Journal of Researches into the Natural History and Geology of the

Countries Visited during the Voyage of H.M.S. Beagle Round the

World._ _Beagle Journal._

_More Letters of Charles Darwin_, two volumes. _More Letters._

_The Movements and Habits of Climbing Plants._ _Climbing Plants._

_The Origin of Species._ _Origin._

_The Power of Movement in Plants._ _Movement in Plants._

_The Variation of Animals and Plants under Domestication_, two

volumes. _Animals and Plants._

_The Various Contrivances by which Orchids are Fertilized by

Insects._ _Orchids._

BOOKS BIOGRAPHICAL AND CRITICAL MOST FREQUENTLY REFERRED TO IN THE

NOTES, WITH THE ABBREVIATIONS USED

Aristotle, _Historia Animalium_, translated by D’Arcy Wentworth

Thompson. _Historia Animalium._

Castle, W. E., _Genetics and Eugenics_. _Genetics and Eugenics._

Conklin, Edwin Grant, _The Direction of Human Evolution_. _Evolution._

Darwin, Emma, _A Century of Family Letters_, two volumes. _Family

Letters._

Darwin, _The Life and Letters of Charles Darwin_, two volumes. _Life._

De Vries, Hugo, _Species and Varieties, Their Origin by Mutation_.

_Species and Varieties._

Goncourts, Edmond et Jules, _Journal des Goncourts_, nine volumes.

_Goncourts, Journal._

Gray, Asa, _Letters of_, edited by Jane Loring Gray, two volumes.

Gray _Letters._

Grant Duff, Sir Mountstuart E., _Notes from a Diary_, fourteen

volumes, 1851-1901. Grant Duff.

Huxley, Thomas H., _Darwiniana_ (the second volume of Collected

Essays). _Darwiniana._

Huxley, Thomas H., _Life and Letters of_, by his son Leonard, two

volumes. Huxley, _Life._

Lull Richard, Harry Burr Ferris, George Howard Parker, James Rowland

Angell, Albert Galloway Keller, Edwin Grant Conklin, _The Evolution

of Man_. Lull.

Morgan, Thomas Hunt, _Evolution and Adaptation_. _Evolution and

Adaptation._

Osborn, Henry Fairfield, _The Earth Speaks to Bryan_. _The Earth

Speaks._

Osborn, _From the Greeks to Darwin_. _Greeks to Darwin._

Osborn, Henry Fairfield, _Impressions of Great Naturalists_. _Great

Naturalists._

Parker, George Howard, _What Evolution Is_. _What Evolution Is._

Pearson, Karl, _The Grammar of Science_. _Grammar of Science._

Thoreau, Henry, _Journal_, fourteen volumes. _Journal._

_Vallery-Radot, Pasteur._ _Vallery-Radot, Pasteur._

Wallace, Alfred Russell, _My Life_, two volumes. Wallace, _Life_.

Whitehead, Alfred North, _Science and_ _the Modern World_. _Science

and the Modern World._

NOTES

CHAPTER I: THE OBSERVER

[1] _Journal des Goncourts_, May 1, 1857, vol. I, p. 182.

[2] Ben Jonson, _The Poetaster_, act II, scene 1.

[3] _Sentimental Journey_, ‘In the Street.’

[4] _Portraits Littéraires_, vol. III, p. 546.

[5] _Expression_, p. 80.

[6] Thoreau, _Journal_, vol. VII, p. 46.

[7] Gray, to Darwin, May 18, 1862, Gray, _Letters_, vol. II, p. 481.

[8] _Great Naturalists_, p. 51.

[9] _More Letters_, vol. I, p. 72.

[10] _Life_, vol. I, p. 83.

[11] To Farrar, November 26, 1868, _Life_, vol. II, p. 453.

[12] To Hooker, 1867, _More Letters_, vol. II, p. 6.

[13] To Lyell, June 1, 1867, _Life_, vol. II, p. 248.

[14] To Wilson, April 29, 1878, _More Letters_, vol. II, p. 421.

[15] To Galton, November, 1879, _Life_, vol. II, p. 414.

[16] To Lyell, March 17, 1863, _Life_, vol. II, p. 201.

[17] To Galton, November 8, 1872, _More Letters_, vol. II, p. 108.

[18] _Expression_, p. 184.

[19] To Dr. Ogle, March 12, 1871, _Life_, vol. II, p. 321.

[20] _More Letters_, vol. I, p. 4.

[21] To Jenyns, October 17, 1846, _Life_, vol. I, p. 396.

[22] _Beagle Journal_, p. 282.

[23] To Gray, June 3, 1874, _Life_, vol. II, p. 457.

[24] To Hooker, December 11, 1860, _Life_, vol. II, p. 148.

[25] To Scott, July 2, 1863, _More Letters_, vol. II, p. 323.

[26] To Horner, January, 1847, _More Letters_, vol. II, p. 224.

[27] _Expression_, p. 12.

[28] _Life_, vol. II, p. 238.

[29] _More Letters_, vol. II, p. 105.

[30] _Life_, vol. I, p. 40.

[31] _Different Forms of Flowers_, p. 189.

[32] To Wiesner, October 4, 1881, _More Letters_, vol. II, p. 432.

[33] _Life_, vol. I, p. 124.

[34] _Ibid._

[35] _Life_, vol. I, p. 125.

[36] _Life_, vol. II, p. 453.

[37] _Cirripedia_, p. 155.

[38] To Lyell, September 12, 1860, _Life_, vol. II, p. 133.

[39] _Darwiniana_, p. 275.

[40] To Hooker, February 4, 1861, _Life_, vol. II, p. 153.

[41] To Lyell, March 9, 1850, _More Letters_, vol. II, p. 229.

[42] _Life_, vol. I, p. 125.

[43] _Life_, vol. I, p. 105.

[44] _Life_, vol. I, p. 80.

[45] _Life_, vol. I, p. 121.

[46] _Purgatorio_, canto III.

[47] To Miss S. Darwin, August 4, 1836, _Life_, vol. I, p. 237.

[48] To Hooker, 1847, _Life_, vol. I, p. 317.

[49] _More Letters_, vol. I, p. 3.

[50] To Miss C. Darwin, November 8, 1834, _Life_, vol. I, p. 230.

[51] _Beagle Journal_, p. 78.

[52] _Life_, vol. I, p. 109.

[53] _Expression_, p. 194.

[54] To Romanes, May 29, 1876, _More Letters_, vol. I, p. 364.

[55] To Fox, May, 1832, _Life_, vol. I, p. 206.

[56] To Henslow, May 18, 1832, _Life_, vol. I, p. 208.

[57] To Henslow, August 15, 1832, _More Letters_, vol. I, p. 9.

[58] _Journal_, August 29, 1858, vol. XI, p. 137.

[59] _Journal_, December 4, 1856, vol. IX, p. 158.

[60] _Life_, vol. I, p. 368.

[61] _Worms_, p. 97.

[62] _Origin_, p. 105.

[63] In _Popular Science Monthly_, April, 1909, vol. LXXIV, p. 198.

CHAPTER II: THE THINKER

[64] To Bates, November 22, 1860, _More Letters_, vol. I, p. 176.

[65] To Fawcett, September 18, 1861, _More Letters_, vol. I, p. 195.

[66] _More Letters_, vol. I, p. 93.

[67] _Life_, vol. I, p. 40.

[68] Answer to questionnaire, _Life_, vol. II, p. 355.

[69] _Life of Huxley_, vol. I, p. 521.

[70] To Wallace, August 28, 1872, _Life_, vol. II, p. 346.

[71] To Balfour, September 4, 1880, _More Letters_, vol. II, p. 424.

[72] _Beagle Journal_, p. 378.

[73] To Wallace, December 22, 1857, _Life_, vol. I, p. 465.

[74] _Journal_, March 23, 1853, vol. V, p. 45.

[75] Gray to Canby, July 14, 1874, Gray, _Letters_, vol. II, p. 649.

[76] Gray to Darwin, July 21, 1863, Gray, _Letters_, vol. II, p. 509.

[77] _Life_, vol. I, p. 79.

[78] To Fox, March 24, 1859, _Life_, vol. I, p. 506.

[79] _Life_, vol. I, p. 83.

[80] To Hooker, February, 1846, _More Letters_, vol. I, p. 56.

[81] To Wallace, February 26, 1867, _Life_, vol. II, p. 276.

[82] _Grammar of Science_, p. 38.

[83] To Huxley, December 2, 1860, _Life_, vol. II, p. 147.

[84] To Hooker, November 15, 1855, _More Letters_, vol. I, p. 84.

[85] To Gray, November 29, 1859, _More Letters_, vol. I, p. 126.

[86] _Beagle Journal_, p. 443.

[87] _Life_, vol. I, p. 83.

[88] Thiselton Dyer, in _Life_, vol. II, p. 431.

[89] To Gray, 1857, _More Letters_, vol. II, p. 252.

[90] To Hooker, January 11, 1844, _More Letters_, vol. I, p. 39.

[91] To Wallace, May 1, 1857, _Life_, vol. I, p. 454.

[92] To Carpenter, November 19, 1859, _Life_, vol. II, p. 19.

[93] To Huxley, May 27, 1865, _Life_, vol. II, p. 228.

[94] Aristotle, _Historia Animalium_, Book I, chapter VI.

[95] _Life_, vol. I, p. 126.

[96] To Hooker, April 14, 1855, _Life_, vol. I, p. 415.

[97] To Hooker, March 26, 1863, _More Letters_, vol. I, p. 474.

[98] _Genetics and Eugenics_, p. 181.

[99] De Vries, _Species and Varieties_, p. 769.

[100] _Different Forms of Flowers_, p. 156.

[101] To Gray, April 3, 1860, _Life_, vol. II, p. 90.

[102] _Zur Naturwissenschaft, Einzelne Betrachtungen und Aphorismen_,

section III.

[103] _Life_, vol. I, p. 121.

[104] To Wiesner, October 25, 1881, _Life_, vol. II, p. 510.

[105] _Life_, vol. I, p. 122.

[106] _Orchids_, p. 208.

[107] To Huxley, November 27, 1859, _Life_, vol. II, p. 75.

[108] _Insectivorous Plants_, p. 154.

[109] To Gray, June 8, 1860, _More Letters_, vol. I, p. 153.

[110] Huxley to Romanes, May 9, 1882, _Life of Huxley_, vol. II, p.

42.

[111] Huxley to Foster, February 14, 1888, _Life of Huxley_, vol. II,

p. 203.

[112] Huxley to Hooker, March 9, 1888, _Life of Huxley_, vol. II, p.

204.

[113] _Darwiniana_, p. 287.

[114] Alexander Agassiz to Gibbs, December 15, 1897, in G. R.

Agassiz, _Letters and Recollections of Alexander Agassiz_, p. 333.

[115] J. J. Stevenson, in _Popular Science Monthly_, April, 1909,

vol. LXXIV, p. 353.

[116] October 2, 1879, _Life_, vol. II, p. 360.

[117] May 5, 1881, _More Letters_, vol. II, p. 198.

[118] _Descent_, p. 606.

[119] September 23, 1868, _More Letters_, vol. II, p. 85.

[120] August 19, 1868, _More Letters_, vol. II, p. 84.

[121] To Wallace, April 30, 1868, _More Letters_, vol. II, p. 77.

[122] To Huxley, June 12, 1867, _More Letters_, vol. I, p. 281.

[123] _Animals and Plants_, vol. II, p. 396.

[124] _Animals and Plants_, vol. II, p. 399.

[125] _Life_, vol. I, p. 75.

[126] August Weisman, _The Evolution Theory_ (translation Thomson),

vol. I, p. 242.

[127] _Darwiniana_, p. 20.

[128] To Hooker, January 20, 1859, _Life_, vol. I, p. 499.

[129] _Life_, vol. I, p. 77.

[130] Vallery-Radot, _Pasteur_, p. 139.

[131] _Life_, vol. I, p. 71.

[132] To Lyell, September 20, 1859, _Life_, vol. I, p. 521.

[133] _Life_, vol. I, p. 130.

[134] _Life_, vol. I, p. 117.

[135] July 2, 1860, _Life_, vol. II, p. 116.

[136] To Lyell, August 1, 1845, _Life_, vol. I, p. 308.

[137] To Hooker, September 25, 1853, _Life_, vol. I, p. 400.

[138] _Origin_, p. 404.

[139] To Hooker, October, 1856, _Life_, vol. I, p. 443.

[140] To Henslow, _Life_, vol. I, p. 245.

[141] To Huxley, July 3, 1860, _Life_, vol. II, p. 117.

[142] _Life_, vol. I, p. 72.

[143] To Lyell, October 1, 1861, _More Letters_, vol. II, p. 191.

[144] _Zur Naturwissenschaft, Einzelne Betrachtungen und Aphorismen_,

section III.

[145] To Hooker, December 10, 1866, _Life_, vol. II, p. 239.

[146] To Hooker, May 2, 1857, _Life_, vol. I, p. 454.

[147] _Darwiniana_, p. 246.

[148] To De Candolle, January 14, 1863, _More Letters_, vol. I, p.

234.

[149] To Hooker, April 1, 1864, _More Letters_, vol. II, p. 330.

[150] To Hooker, April, 1857, _Life_, vol. I, p. 450.

[151] To Hooker, March 7, 1855, _Life_, vol. I, p. 405.

[152] To Hooker, July 30, 1856, _Life_, vol. I, p. 439.

[153] To Huxley, January 10, 1863, _More Letters_, vol. I, p. 231.

CHAPTER III: THE DISCOVERER

[154] _Historia Animalium_, book VIII, chapter XXVIII.

[155] _Historia Animalium_, book VIII, chapter XXIX.

[156] _Beagle Journal_, p. 216.

[157] To Hooker, January 11, 1844, _Life_, vol. I, p. 384.

[158] To Hooker, November, 1844, _More Letters_, vol. I, p. 43.

[159] To Lyell, October, 11, 1859, _Life_, vol. II, p. 10.

[160] _Greeks to Darwin_, p. 156.

[161] _Greeks to Darwin_, p. 233.

[162] To Lyell, March 12, 1863, _Life_, vol. II, p. 199.

[163] Marcus Herzog, introduction to Samuel Butler’s _Unconscious

Memory_, p. XII.

[164] To Lyell, March 17, 1863, _Life_, vol. II, p. 201.

[165] _More Letters_, vol. I, p. 37.

[166] _MS. Journals_, in _Life_, vol. I, p. 363.

[167] To Horace Darwin, December 15, 1871, _Family Letters_, vol. II,

p. 207.

[168] P. 426.

[169] June 18, 1858, _Life_, vol. I, p. 473.

[170] To Lyell, June 25, 1858, _Life_, vol. I, p. 474.

[171] Hooker to Francis Darwin, _Life_, vol. I, p. 482.

[172] In _Popular Science Monthly_, April, 1909, vol. LXXIV, p. 396.

[173] To Wallace, April 20, 1870, _Life_, vol. II, p. 301.

[174] _Darwiniana_, p. 286.

[175] _Animals and Plants_, vol. I, p. 225.

[176] _Descent_, p. 563.

[177] _More Letters_, vol. I, p. 2.

[178] _Life_, vol. I, p. 54.

[179] To Hooker, November 5, 1854, _Life_, vol. I, p. 404.

[180] To Hooker, July 13, 1858, _Life_, vol. I, p. 484.

[181] _Life_, vol. I, p. 46.

[182] To Fox, March 24, 1859, _Life_, vol. I, p. 506.

[183] _Life_, vol. I, p. 55.

[184] _Life_, p. 71.

[185] In _Life_, vol. II, p. 115.

[186] To Lyell, April 10, 1860, _Life_, vol. II, p. 94.

[187] To Huxley, December 18, 1862, _More Letters_, vol. I, p. 230.

[188] _Great Naturalists_, p. 70.

[189] Agassiz to Murray, December 2, 1887, G. R. Agassiz, _Letters

and Recollections of Alexander Agassiz_, p. 228.

[190] To Falconer, January 5, 1863, _More Letters_, vol. I, p. 228.

[191] To Huxley, April 11, 1864, _More Letters_, vol. I, p. 246.

[192] To Henslow, October 26, 1860, _More Letters_, vol. I, p. 174.

[193] To Wallace, July 12, 1871, _Life_, II, p. 326.

[194] To Häckel, May 21, 1867, _Life_, vol. II, p. 251.

[195] Huxley to Darwin, November 14, 1880, _Life of Huxley_, vol. II,

p. 15.

[196] To Hooker, December 25, 1859, _Life_, vol. II, p. 46.

[197] Speech, November, 1877, _Life of Huxley_, vol. I, p. 514.

[198] P. 262.

[199] To Hooker, December 14, 1859, _Life_, vol. II, p. 38.

[200] To Gray, April 3, 1860, _Life_, vol. II, p. 91.

[201] To Henslow, May 8, 1860, _More Letters_, vol. I, p. 149.

[202] _Origin_, p. 133.

[203] _Origin_, p. 143.

[204] _Origin_, p. 228.

[205] _Origin_, p. 233.

[206] _Orchids_, p. 257.

[207] To Huxley, May 11, 1880, _More Letters_, vol. I, p. 387.

[208] _Darwiniana_, p. 184.

[209] To Lyell, September 20, 1859, _Life_, vol. I, p. 521.

[210] To Hooker, June 17, 1856, _Life_, vol. I, p. 432.

[211] To Falconer, October 1, 1862, _More Letters_, vol. I, p. 206.

[212] _Origin_, p. 162.

[213] To Hooker, July 5, 1856, _More Letters_, vol. I, p. 93.

[214] To Miller, June 5, 1859, _More Letters_, vol. I, p. 122.

[215] To Hooker, June 30, 1862, _Life_, II, p. 445.

[216] To Wallace, July 12, 1871, _Life_, vol. II, p. 325.

[217] To Hooker, June 15, 1881, _More Letters_, vol. II, p. 433.

[218] To Falconer, October 1, 1862, _More Letters_, vol. I, p. 209.

[219] To Lyell, September 26, 1860, _More Letters_, vol. I, p. 167.

[220] To Hooker, January 16, 1869, _More Letters_, vol. II, p. 379.

[221] _Evolution and Adaptation_, p. 231.

[222] _Greeks to Darwin_, p. 229.

[223] November 7, 1875, _More Letters_, vol. I, p. 360.

[224] _Descent_, p. 61.

[225] In _Life_, vol. II, p. 187, from _Life of Kingsley_, vol. II,

p. 171.

[226] To Hooker, April or May, 1859, _Life_, vol. I, p. 512.

[227] To Gray, October, 1865, _Life_, vol. I, p. 489.

[228] _Life_, vol. I, p. 82.

[229] _Greeks to Darwin_, p. 5.

[230] _Science and the Modern World_, p. 158.

[231] _What Evolution is_, p. 17.

[232] _Evolution_, p. 16.

[233] _The Earth Speaks_, p. 19.

[234] Quoted in _Boston Transcript_ review of translation of Weber’s

_History of Philosophy_, February 6, 1926.

CHAPTER IV: THE LOSER

[235] To Hooker, October 13, 1858, _Life_, vol. I, p. 495.

[236] To Hooker, June 17, 1868, _Life_, vol. II, p. 273.

[237] _Life_, vol. I, p. 81.

[238] _Life_, vol. I, p. 81.

[239] _Life_, vol. I, p. 30.

[240] To Lyell, January 22, 1865, _Life_, vol. II, p. 216.

[241] To Morley, March 24, 1871, _More Letters_, vol. I, p. 326.

[242] Lull, p. 129.

[243] To Hooker, December 21, 1859, _Life_, vol. II, p. 21.

[244] To Hooker, September 27, 1865, _Life_, vol. II, p. 225.

[245] To Henslow, May 18, 1832, _Life_, vol. I, p. 220.

[246] _Life_, vol. II, p. 356.

[247] To Herbert, June 2, 1833, _Life_, vol. I, p. 210.

[248] _Reminiscences of Charles Darwin_, in _Harper’s Magazine_,

December, 1909, vol. CXX, p. 15.

[249] To Müller, August 28, 1870, _More Letters_, vol. II, p. 92.

[250] _Beagle Journal_, p. 499.

[251] _Life_, vol. II, p. 377.

[252] _Descent of Man_, p. 70.

[253] _Life_, vol. II, p. 309.

[254] To Wallace, July 12, 1881, in Wallace, _Life_, vol. II, p. 15.

[255] To Wallace, July 12, 1881, in Wallace, _Life_, vol. II, p. 14.

[256] To Lyell, January 22, 1865, _Life_, vol. II, p. 217.

[257] _Krause_, p. 70.

[258] Emma Wedgwood to Madame Sismondi, November 15, 1838, _Family

Letters_, vol. II, p. 7.

[259] To Gurney, July 8, 1876, _Life_, vol. II, p. 364.

[260] _Family Letters_, vol. II, p. 171.

[261] _Life_, vol. I, p. 103.

[262] _Ibid._

[263] _Beagle Journal_, p. 112.

[264] _Life_, vol. I, p. 43.

[265] _Life_, vol. I, p. 42.

[266] To Susan Darwin, April 23, 1835, _Life_, vol. I, p. 233.

[267] _Life_, vol. I, p. 146.

[268] _Life_, vol. I, p. 42.

[269] _Life_, vol. I, p. 81.

[270] _Life_, vol. II, p. 178.

[271] To Mrs. Haliburton, November 22, 1880, _Life_, vol. II, p. 508.

[272] To Henslow, July 24, 1834, _More Letters_, vol. I, p. 14.

[273] To Hooker, March 17, 1867, _More Letters_, vol. II, p. 2.

[274] To Rivers, December 28, 1866, _Life_, vol. II, p. 241.

[275] _Darwiniana_, p. 286.

[276] _Life_, vol. I, p. 102.

[277] _Life_, vol. I, p. 81.

[278] _Ibid._

[279] _Life_, vol. I, p. 57.

[280] _Life_, vol I, p. 81.

[281] E. B. Titchener, in _Popular Science Monthly_, January, 1909,

vol. LXXIV, p. 47.

[282] _Causeries du Lundi_, vol. IV, p. 45.

[283] To Newton, May 3, 1780, _The Correspondence of William Cowper_

(edition Wright), vol. I, p. 185.

[284] _Poems_ (Globe edition), p. 191.

[285] _Childe Harold_, canto III, stanza 72.

[286] Sénancour, _Obermann_, p. 40.

[287] _Life_, vol. I, p. 95.

[288] To Mrs. Darwin, April, 1858, _Life_, vol. I, p. 471.

[289] _Beagle Journal_, p. 322.

[290] To Henslow, August 15, 1832, _More Letters_, vol. I, p. 10.

[291] _Family Letters_, vol. II, p. 175.

[292] Mrs. Darwin to Darwin, 1859, _Family Letters_, vol. II, p. 175.

[293] _Family Letters_, vol. II, p. 201.

[294] _Beagle Journal_, p. 263.

[295] _Life_, vol. II, p. 308.

[296] _Ibid._

[297] _Descent of Man_, p. 612.

[298] _Life_, vol. II, p. 238.

[299] _Life_, vol. II, p. 237.

[300] William Darwin, in _Family Letters_, vol. II, p. 169.

[301] _Expression_, p. 219.

[302] _Beagle Journal_, p. 411.

[303] _Life_, vol. I, p. 29.

[304] _Life_, vol. I, p. 282.

[305] To Lyell, September 3, 1874, _More Letters_, vol. II, p. 237.

[306] _Family Letters_, vol. II, p. 253.

[307] To Ridley, November 28, 1878, _Life_, vol. II, p. 412.

[308] To Gray, July, 1860, _Life_, vol. I, p. 284.

CHAPTER V: THE LOVER

[309] Norton to Ruskin, September 9, 1868, _Letters of Charles Eliot

Norton_, vol. I, p. 309.

[310] _Great Naturalists_, p. 57.

[311] _Reminiscences of Charles Darwin_, in _Harper’s Magazine_,

December, 1909, vol. CXX, p. 13.

[312] To Francis Darwin, November 11, 1887, _The Life and Letters of

Leslie Stephen_, by Frederic William Maitland, p. 393.

[313] To Norton, _Life of Stephen_ as above, p. 300.

[314] To Falconer, November 8, 1864, _More Letters_, vol. I, p. 257.

[315] Norton, Diary, April 12, 1873, in _Letters of Charles Eliot

Norton_, vol. I, p. 477.

[316] Kingsley to Lubbock, in _Life of Sir John Lubbock, Lord

Avebury_, by Horace G. Hutchinson, vol. I, p. 92.

[317] Grant Duff, _Diary, 1873-1881_, December 15, 1880, vol. II, p.

283.

[318] July, 1860, _More Letters_, vol. I, p. 159.

[319] September 5, 1862, _More Letters_, vol. I, p. 205.

[320] To Hooker, April 23, 1861, _More Letters_, vol. I, p. 185.

[321] To Fox, March 13, 1837, _Life_, vol. I, p. 249.

[322] _Life_, vol. I, p. 42.

[323] _Life_, vol. I, p. 28.

[324] _Life_, vol. I, p. 49.

[325] _Life_, vol. I, p. 89.

[326] _Life_, vol. I, p. 30.

[327] _Life_, vol. I, p. 96.

[328] Answer to questionnaire, _Life_, vol. II, p. 415.

[329] To Mrs. Darwin, March, 1842, _Family Letters_, vol. II, p. 69.

[330] To Fox, March 24, 1859, _Life_, vol. I, p. 506.

[331] January 28, 1876, _Family Letters_, vol. II, p. 221.

[332] To Hooker, September 1, 1859, _Life_, vol. I, p. 518.

[333] _Life_, vol. I, p. 85.

[334] To Falconer, November 14, 1862, _More Letters_, vol. I, p. 211.

[335] To Hooker, May 29, 1854, _More Letters_, vol. I, p. 79.

[336] _Life_, vol. I, p. 243.

[337] _Life_, vol. I, p. 197.

[338] To Hooker, November, 1863, _Life_, vol. II, p. 186.

[339] To Henslow, May 6, 1849, _More Letters_, vol. I, p. 66.

[340] _Life_, vol. I, p. 96.

[341] _Diary, 1892-1895_, August 6, 1892, vol. I, p. 80.

[342] Emma Wedgwood to Madame Sismondi, November 15, 1838, _Family

Letters_, vol. II, p. 7.

[343] To Hooker, April 10, 1846, _More Letters_, vol. I, p. 416.

[344] To Murray, 1859, _Life_, vol. I, p. 532.

[345] _Life_, vol. I, p. 99.

[346] _Life_, vol. I, p. 98.

[347] _Life_, vol. I, p. 99.

[348] _Reminiscences_, in _Harper’s Magazine_, December, 1909, vol.

CXX, p. 17.

[349] Grant Duff, _Diary, 1896-1901_, vol. I, p. 307.

[350] _Life_, vol. I, p. 118.

[351] _Life_, vol. I, p. 115.

[352] _Life_, vol. I, p. 28.

[353] November, 1855, _More Letters_, vol. I, p. 87.

[354] To Hooker, September 27, 1865, _Life_, vol. II, p. 223.

[355] _Family Letters_, vol. II, p. 118.

[356] January 20, 1839, _More Letters_, vol. I, p. 29.

[357] _Ibid._

[358] _Family Letters_, vol. II, p. 48.

[359] September 5, 1862, _More Letters_, vol. I, p. 204.

[360] _More Letters_, vol. I, p. 30.

[361] _Ibid._

[362] _Life_, vol. I, p. 135.

[363] To Madame Sismondi, February, 1840, _Family Letters_, vol. II,

p. 51.

[364] _Life_, vol. I, p. 109.

[365] _Family Letters_, vol. II, p. 253.

[366] To Gray, July 23, 1862, _More Letters_, vol. I, p. 202.

[367] _Diary of Thomas Moore_, August 29, 1822, vol. III, p. 367.

[368] _Life_, vol. I, p. 112.

[369] _Life_, p. 111.

[370] _Life_, vol. I, p. 115.

[371] _Life_, vol. I, p. 10.

[372] _Life_, vol. I, p. 76.

[373] _Family Letters_, vol. II, p. 44.

[374] December 18, 1861, _More Letters_, vol. II, p. 281.

[375] To Wallace, February 27, 1868, _More Letters_, vol. I, p. 289.

[376] _Life_, vol. I, p. 115.

[377] Krause, p. 29.

[378] _Life_, vol. I, p. 31.

[379] _Life_, vol. I, p. 119.

[380] _Life of Sir John Lubbock, Lord Avebury_, by Horace G.

Hutchinson, vol. I, p. 40.

[381] To Hooker, July 28, 1859, _More Letters_, vol. I, p. 126.

[382] To Hooker, April 14, 1855, _Life_, vol. I, p. 415.

[383] To Hooker, November 5, 1853, _Life_, vol. I, p. 356.

[384] September 11, 1859, _Life_, vol. I, p. 520.

[385] To Hooker, May 25, 1870, _Life_, vol. II, p. 306.

[386] To Müller, June 21, 1881, _More Letters_, vol. II, p. 369.

[387] Huxley to Mivart, November 12, 1885, _Life of Huxley_, vol. II,

p. 122.

[388] To Hooker, July 2, 1860, _Life_, vol. II, p. 116.

CHAPTER VI: THE DESTROYER

[389] To Hooker, December 5, 1863, _More Letters_, vol. II, p. 337.

[390] _Life_, vol. I, p. 279.

[391] _Descent_, p. 145.

[392] In _Life_, vol. II, p. 245.

[393] To Hooker, July 13, 1856, _More Letters_, vol. I, p. 94.

[394] In _Nature_, 1882, vol. XXVI, p. 5, quoted in _Encyclopædia

Brittanica_ (edition 1884), _Supplement_, article _Darwinism_.

[395] _Origin_, p. 429.

[396] To Gray, September 17, 1861, _Life_, vol. II, p. 170.

[397] To Hooker, March 29, 1863, _Life_, vol. II, p. 202.

[398] _Descent of Man_, p. 121.

[399] _Descent of Man_, p. 612.

[400] _Origin_, p. 164.

[401] _Descent of Man_, p. 100.

[402] _Life_, vol. II, p. 347.

[403] To Hooker, February 9, 1865, _More Letters_, vol. I, p. 260.

[404] To Lyell, August 21, 1861, _More Letters_, vol. I, p. 194.

[405] To Gray, May 22, 1860, _Life_, vol. II, p. 105.

[406] _Descent of Man_, p. 612.

[407] _Animals and Plants_, vol. II, p. 428.

[408] _Family Letters_, vol. II, p. 196.

[409] To Scherzer, December 26, 1879, _Life_, vol. II, p. 413.

[410] August Weisman, _The Evolution Theory_ (Translation Thomson),

vol. II, p. 364.

[411] Address on Darwin Centenary, in _Contemporary Review_, July,

1909, vol. XCVI, p. 21.

[412] Herbert Spencer, _An Autobiography_, vol. II, p. 548.

[413] _The Earth Speaks_, p. 63.

[414] In _Boston Herald_, June 3, 1926.

[415] Lull, p. 146.

[416] _Saturday Review of Literature_, editorial, May 29, 1926.

[417] Reverend Charles G. Finney, _Memoirs, Written by Himself_, p.

171.

[418] Jules Lemaître, _Impressions de Théâtre_, vol. IV, p. 114.

[419] _Life_, vol. II, p. 239.

[420] Answers to Questions, in _Boston Herald_, January 4, 1926.

[421] To Hooker, January 19, 1865, _More Letters_, vol. I, p. 260.

[422] _Evolution_, p. 247.

[423] Conklin, _Evolution_, p. 240.

[424] _La Grande Duchesse de Gérolstein_, act IV, scene 3.

[425] _Palinodia._

[426] _La Ginestra._

[427] Ernest Renan, _Drames Philosophiques_, p. 174.

[428] Ernest Renan, _Drames Philosophiques_, p. 178.

[429] _Anatole France Himself_, by J. J. Brousson (translation

Pollock), p. 71.

[430] _The Mysterious Stranger_, p. 150.

[431] _Sopra un Basso Relievo Antico Sepolcrale._

CHAPTER VII: THE SCIENTIFIC SPIRIT

[432] To Scott, June 6, 1863, _More Letters_, vol. II, p. 323.

[433] To Huxley, _More Letters_, vol. I, p. 125.

[434] Hooker on Darwin, _Life_, vol. I, p. 315.

[435] To Huxley, July 20, 1860, _More Letters_, vol. I, p. 158.

[436] To Günther, May 15, 1870, _Life_, vol. II, p. 303.

[437] To Dohrn, January 4, 1870, _More Letters_, vol. II, p. 444.

[438] _Science and the Modern World_, p. 255.

[439] Article by J. E. Harry, on the _Helena_ of Euripides, in

_Journal of American Philology_, October, 1925, vol. XLVI, p. 332.

[440] Speech at Royal Society Anniversary Dinner, 1894, Huxley,

_Life_, vol. II, p. 413.

[441] To Hooker, July 28, 1868, _More Letters_, vol. I, p. 305.

[442] To Farrar, August 28, 1881, _More Letters_, vol. I, p. 394.

[443] To Hooker, March 3, 1860, _Life_, vol. II, p. 85.

[444] To Lubbock, November 12, 1859, _Life_, vol. II, p. 14.

[445] To Carpenter, November 19, 1859, _Life_, vol. II, p. 19.

[446] To Madame d’Epinay, July 6, 1766, _Correspondance de Voltaire_

(edition 1881), vol. XII, p. 329.

[447] To Hooker, 1856, _More Letters_, vol. I, p. 90.

[448] To Wiesner, October 25, 1881, _Life_, vol. II, p. 508.

[449] To Bentham, November 25, 1869, _More Letters_, vol. I, p. 379.

[450] To Wilson, March 5, 1879, _More Letters_, vol. II, p. 422.

[451] Darwin to Wallace, August 8, 1872, _Life_, vol. II, p. 348.

[452] Vallery-Radot, _Pasteur_, p. 22.

[453] To Henslow, April 1, 1848, _More Letters_, vol. I, p. 61.

[454] _Portraits Littéraires_, vol. III, p. 546.

[455] _Port-Royal_, vol. I, p. 55.

[456] _Causeries du Lundi_, vol. II, p. 268.

[457] _Portraits Contemporains_ (1882), vol. V, p. 461.

[458] _Portraits Littéraires_, vol. III, p. 543.

[459] _Portraits Contemporains_ (1882), vol. V, p. 465.

[460] _Portraits Contemporains_ (1882), vol. V, p. 464.

[461] _Portraits Littéraires_, vol. III, p. 543.

[462] _Journal des Goncourts_, vol. II, p. 134.

[463] _Conversations with Eckermann_, quoted in William James,

_Varieties of Religious Experience_, p. 137.

[464] _Port-Royal_, vol. VI, p. 245.

[465] To Helvetius, January 5, 1740, _Correspondance_ (edition 1881),

vol. III, p. 356.

[466] Quoted by Sainte-Beuve, _Causeries du Lundi_, vol. VII, p. 47.

[467] _Tristram Shandy_, Book VII, chapter XXXIII.

[468] _Maximen und Reflexionen_, chapter III.

[469] _Journal de Henri Frédéric Amiel_, vol. I, p. 129.

[470] _Discoveries_, in Jonson’s Works (edition Cunningham), vol.

III, p. 401.

[471] _Homeric Epigrams_ (edition Baumeister), V.

INDEX

Abstemiousness, D.’s, 182.

Accuracy, D. and, in observation, 21; in statement, 22, 23;

mathematical, and instruments, 24; his hobby, 59.

Achievement, motives, 96-99; D.’s attitude, 99-101.

Adams, Henry, effect of evolution on, 242.

Æsthetics, observation in, 11; D.’s attitude, 137; effect of

scientific spirit, 272, 275.

Agassiz, Alexander, on D.’s coral-reef theory, 65; on D. and candor,

105.

Agassiz, Louis, and evolution, 103.

Agnosticism, as dogma, 283, 284.

Agriculture, revolution, 11.

Ambition, as trait, D. on it, 96.

Amiel, H. F., self-dissection, 280.

Animals, D.’s love, 135, 188.

Appearance, D.’s, 168.

Appreciation, D.’s trait, 79, 80; element in scientific spirit, 263.

Architecture, D.’s attitude, 139.

Ardor, element in scientific spirit, 264.

Argument, D.’s attitude, 74.

Aristotle, on experiment, 56; and evolution, 84.

Arnold, Matthew, on Goethe, 271.

Art, D.’s attitude, 138-40; evolution and realism, 225.

Barnacles, D.’s study, 26.

Bates, H. W., and nature, 12.

_Beagle_, D.’s voyage, 4.

Bell, Thomas, and D., 173.

Bergson, Henri, and evolution, 235.

Bryce, Lord, on D. and Gladstone, 133; on D.’s appearance, 168.

Buckle, H. T., D. on, 143.

Buffon, Comte de, and evolution, 84, 119.

Burbank, Luther, and experiment, 57; and future life, 228.

Butler, Samuel, D.’s controversy, 108; and religion and evolution,

237.

Byron, Lord, and nature, 152.

Candor, D.’s trait, 77-79, 105.

Castle, W. E., on experiment, 57.

Caution, element in scientific spirit, 245. _See also_ Deduction.

Chambers, Robert, and evolution, 84.

Children. _See_ Family.

Civil War, D.’s interest, 134.

Collecting, D. and, 43.

Comparison, D.’s trait, 31.

Conklin, E. G., on natural selection, 125; on evolution and religion,

239.

Conscience, activity of D.’s, 160.

Controversy, over evolution, 6; D.’s attitude, 76, 77, 107.

Conversation, D.’s, 170.

Coolidge, Calvin, on politics and religion, 222.

Copernicus, and orthodoxy, 209.

Coral reefs, D.’s theory, 64-66.

Correspondence, character of D.’s, 78, 145.

Cowper, William, and nature, 149, 150.

Creation, desire, 98.

Criticism, D.’s attitude, 104-17.

Cruelty, D.’s hatred, 135.

Curiosity, element of scientific spirit, 248, 249; Sainte-Beuve and

Goethe and, 268, 270.

Darwin, Charles R., influence, 3; character, 3; birth, 3; ancestry,

3; education, 4, 45; interest in outdoor life and sport, 4, 174-76;

_Beagle_ voyage, 4, 14; marriage, home and children, family life,

4, 196-201; invalidism, patience, 5, 36, 177-83, 193-95; tomb,

6; scientific observation, on it, 6, 14-16; and self-analysis,

16; study of expression, 17-19, 198; promotion of observation by

others, 19, 23; accuracy, 21-24, 59; and detail, 25; industry and

patience, 27-30, 252; system, 30, 31, 183; element of comparison,

31; difficulties and discomforts of outdoor observation, 32-34;

sympathy, and observation, 34-36; effect of physical limitations, 36,

37; and collecting, 43; and observation and deduction, 44-46, 250;

on Spencer, 47, 78; and deduction and induction, 46-48; mental power

and activity, 48; control over theorizing, 51, 54, 55, 115, 124; on

excessive theorizing, 52, 53, 254; and experiment, 56-62; exposition,

style, caution, 62-64, 143-45, 212; on coral reefs, 64-66; on sexual

selection, 66, 67; on pangenesis, 68; and metaphysics, 69; doubt and

self-criticism, 70, 71; and objections and difficulties, 71, 72,

113-15; and revision, 73, 118; and argument, 74-76; and controversy,

76, 107; and mistakes, 77; candor, 77-79, 105; as correspondent, 78,

145; appreciation and tolerance, 79, 80, 262, 263; and ignorance

and deceptive reasoning, 80-82; and motives of achievement, 99-101;

Butler controversy, 108; humility, 110, 258, 260; success of books,

122; fame, 126; atrophy of other interests, 128-30, 272, 275;

and history, 130, 131; and politics, 131-34; and Civil War, 134;

and slavery, 134; and animals, hatred of cruelty, 135, 188; and

vivisection, 136; and social questions, 136, 137; and æsthetics,

137-40; and music, 140-42; and fiction, 145; and poetry, 146-48; and

natural beauty, 148, 153-56; and religion and conscience, 156-63;

personal appearance, 168; hospitality, 169; conversation, 170-72;

fun, 172; and society, 173, 178; humanity, 176; abstemiousness and

indulgence, 182; regimen, 183; finances, 184-86; generosity, 186;

manner and temperament, 188; and his father, 190; as fiancé, 190-92;

as husband, wife’s care, 192-94; friendship and services, 201-07;

impartiality, 256; on scientific ardor, 264; on love of truth, 266.

_See also_ Evolution.

Darwin, Emma (Wedgwood), 4; and theater, 139; and D.’s religious

attitude, 157; D. as fiancé, 190-92, and as husband, 192; as wife,

and D.’s invalidism, 193-96; and D.’s theories, 218.

Darwin, Erasmus, 4; and evolution, 84, 85; controversy over

biography, 108.

Deduction, observation and, 44-46; and induction, 46-48; D.’s

attitude, 46, 47; D.’s power, 48-50, 69; his control over it, 51,

54, 55, 115, 124; D. on excessive, 52, 53; types of thinkers, 53-55;

experiment and, 55; D. and experiment, 56-62; D. and exposition,

62-64; illustrations of his theorizing, 64-69; D. and doubt, 70,

71; D. and objections, 71, 72; his trait of revision, 73; D. and

arguments, 74-77; D. and mistakes, 77; D. and deception in reason,

80-82, 115. _See also_ Observation; Scientific spirit.

Democracy, evolution and, 223.

Details, D. and, 25.

De Vries, Hugo, imitation theory, 124.

Discipline, D. and his children, 197.

Doubt, value, 70; in D.’s logical processes, 70, 71; aspects of

agnosticism, 203-05. _See also_ Religion.

Drink, D. and, 182.

Earthworms, D.’s study, 21, 42, 151.

Education, D.’s, 4; training in deduction, 45.

Eliot, C. W., effect of evolution on, 246.

Emerson, R. W., on evolution, 42, 234; and nature, 151.

Empedocles, and evolution, 84.

Ethics, D. and morality, 160; and evolution, 213-15, 219, 222, 231.

Evolution, idea and D.’s explanation of process, 4; controversy, 6;

acceptance of principle, 6, 121, 125; effect on study of natural

history, 40-43; as term, 83; before Darwin, 83-85, 101, 233; theory

of inheritance of acquired characters, D. and, 85, 87; D. and

predecessors, 85-88; beginning of D.’s interest, 88; his development

of theory of natural selection, 89-91; his statement of theory, 91;

his realization of influence of theory, 92, 209-13; his years of

study and experiment, 92, 93; Wallace and presentation of theory,

93, 94; D. and Wallace, 94, 95; _Origin of Species_, its effect, 96;

D.’s attitude toward, as achievement, 99-101, 122-24; attacks by

scientists, 102; religious attacks, 103; D. and attacks, 104-08; D.

and other workers, 109; D. and difficulties, 111-17; D.’s revisions,

118; modification of theory, 119-21, 124; promulgators, 121; effect

on theology, 209; D.’s caution in statement, 212; D. and ethical

standards under theory, 213; D. and effect on belief, 215, 216;

D. and belief in God, 216-18; and atheism, 218-20; as typifying

scientific influence on life, 221; influence on politics, 222-25; and

realism, 225; and hell and heaven, 227; and popular belief in God and

worship, 229, 230; and substitute for sin, 231-33; philosophical,

233-35; clerical harmonizing with religion, 236; Fundamentalists

and, 237, 282; scientific harmonizing, 237-39; and individualism in

religious belief, 239, 240; future adjustment with religion, 240;

destructive spiritual effect, 241-47; self-contradictions in reason,

280.

Experiment, D.’s devotion, 5, 56; position, 55; equipment, 57; D.’s

thoroughness, 58; impersonality, 58; accuracy, repetition, 59;

recording, errors and successes, 61.

Exposition, D.’s power, 62-64; illustrations, 64-69.

Expression, D.’s study, 17-19.

Eye, and evolutionary theory, 112.

Fabre, J. H., and nature, 12.

Fame, as motive of achievement, 96-101.

Family, D. and father’s memory, 190; D. as fiancé, 190-92; husband

and wife, 192-96; children, training, 196-201; their assistance, 200.

Farrer, Sir Thomas, on D.’s detailed observation, 26.

Fichte, J. H. von, and evolution, 233.

Fiction, D.’s attitude, 145.

Financial condition, D.’s, 184; his attitude and care, 185; his

generosity, 186.

Finney, C. G., on revival, 230.

Fiske, John, and evolution, 122, 241.

France, Anatole, effect of evolution on, 242.

Friendship, D.’s trait, 201, 202; his influence over friends, 202;

his dependence, 203; his services to friends, 204-07.

Fun, D.’s trait, 172.

Fundamentalism, attacks on evolution, 103, 282; ethical attitude,

232; theological attitude, 237.

Gautier, Théophile, on observation, 7; as poet, 11.

Generosity, D.’s trait, 186.

George, Henry D. and _Progress and Poverty_, 137.

Gladstone, W. E., and D., 133.

God, D.’s attitude, 164-67; influence of evolution on belief, 216-18,

229; thirst for, 285.

Goethe, J. W. von, on repetitions, 59; on doubt, 70; on mistakes,

77; and evolution, 85; and poetry, 148; on love of truth, 265; and

scientific spirit, 270, 271; pessimism, 274; on active ignorance, 279.

Gould, George M., on D.’s invalidism, 180.

Grant Duff, Sir M. E., on D., 182.

Gray, Asa, on D.’s observation, 14; on D. as thinker, 49; relations

with D., 110; and evolution, 121, 238.

Häckel, Ernst, and D., 110; and evolution, 122; atheism, 219.

Hartmann, K. R. E. von, and evolution, 233.

Hegel, G. W. F., type, 53; and evolution, 233.

Hell, obsolete, 227.

History, D. and, 130, 131.

Homer, on self-ignorance, 282.

Hooker, Sir Joseph, on Darwin-Wallace paper, 94; and D., 101, 110.

Hospitality, D.’s, 169.

Humanity, and study of natural history, 40-43, 136; Sainte-Beuve’s

study, 267, 268.

Humility, D.’s trait, 110; and scientific spirit, 257-61.

Huxley, T. H., on D. and detailed observation, 26; on D.’s industry,

27; and induction, 46; on D.’s mental processes, 62; on D.’s candor,

79; on effect of _Origin of Species_, 96; and Bishop of Oxford’s

attack, 103; restraint of D., 108; on D. and adverse suggestions,

115; and promulgation of D.’s theory, 121; on D.’s style, 144;

relations with D., 203-05; on influence of D.’s appreciation, 206;

and religion, 219; on D.’s impartiality, 256.

Ibsen, Henrik, effect of evolution on, 241.

Ignorance, realization and scientific spirit, 257, 283.

Imagination. _See_ Deduction.

Immortality, D.’s attitude, 163; effect of evolution, 215.

Impartiality, element in scientific spirit, 255; Sainte-Beuve and,

268.

Induction, and deduction, 46-48. _See also_ Deduction.

Industry, D.’s, 27; element in scientific spirit, 251.

Inheritance of acquired characters, Lamarck’s theory, 85, 90; D.’s

attitude toward, 87, 119, 120.

Instruments, D.’s faith, 25.

Instinct in practical life, 278, 279.

Interests, absorption and atrophy, 128-30, 272.

Invalidism, D.’s, 5, 36, 177; his attitude toward it, 178, 179, 194;

cause, 179-81; Mrs. D.’s care, 193-96.

James, William, and evolution, 234.

Jeffries, Richard, and nature, 12.

Jonson, Ben, on observation, 7; on self-ignorance, 282.

Kingsley, Charles, on evolutionary theory, 121; on D.’s conversation,

171.

Knowledge, and observation, 38-40; and wisdom, 44.

Krause, Ernst, biography of Erasmus Darwin, 108.

Lamarck, Jean de, evolutionary theory, 85, 90, 119, 120; D.’s

attitude, 86.

Land question, D. and, 136.

Leibnitz, Baron von, and gravity, 257.

Leopardi, Giacomo, pessimism, 238, 245.

Literature, D.’s attitude, 143, 145-48; D.’s style, 143-45; effect

of evolution, 225-27.

Linnæan Society, Darwin-Wallace paper, 94.

Lodge, Sir Oliver, and science and spiritualism, 238.

Love, D.’s valuation, 206. _See also_ Family; Friendship.

Lubbock, Sir John, on debt to D., 202.

Lucretius, type, 54; scientific ardor, 265.

Lyell, Sir Charles, on controversy, 76; and evolution, 84; and D.,

101, 110; on D. and ‘remorse,’ 211.

McDougall, William, on inheritance of acquired characters, 85.

Maine de Biran, self-dissection, 280.

Manner, D.’s, 188.

Marriage of cousins, D. and, 136.

Mendel, Gregor, experiments, 124.

Milton, John, D.’s appreciation, 146.

Missing links in evolutionary theory, 113.

Missionaries, D.’s attitude, 159.

Mistakes, D.’s attitude, 77.

Mivart, St. G. J., and evolution and religion, 238.

Montesquieu, on study, 277.

Moody, D. L., absorption of interest, 129; and prayer, 162; and God,

167; and hell and heaven, 227, 228.

Moore, Thomas, on children, 196.

Morality. _See_ Ethics.

Morgan, Lloyd, and evolution, 235.

Music, D.’s attitude, 140-42.

Native, utilitarian and æsthetic observation, 10-13; D. and

appreciation, 148, 153-56; elements of enjoyment, 149-53.

Natural selection, D.’s term and theory, 5, 90; modification of

theory, 119-21, 124. _See also_ Evolution.

Neuter insects, and evolutionary theory, 113.

Nietzsche, F. W., effect of evolution on, 241.

Norton, C. E., on D., 168, 170.

Objections, in D.’s logical processes, 71.

Observation, D.’s scientific trait, 6, 14, 19-21; as general trait,

6-8; by women, 8; exclusive, 8; of humanity, 9, 267, 268; of nature,

change in character, 10; ulterior, 11; æsthetic, 11; delight, 12,

38, 148-54; Thoreau, 13; D.’s comments, 15; D.’s general trait,

16; his study of expression, 17-19; D. and accuracy, 21; accuracy

in statement, 22-24; D. and information from others, 19, 23;

mathematical, and instruments, 24; detailed, 25; D.’s industry and

patience, 27-29; need of patience, 29; system, 30, 31; comparison,

31; difficulties and discomforts, 32-34; and sympathy, 34-36; effect

of D.’s physical limitations, 36, 37; knowledge as aid, 38-40; effect

of evolution on, 40-43. _See also_ Deduction; Scientific spirit.

_Origin of Species_, publication, effect, 5, 96; exposition, 63;

revisions, 73, 118; success, 122.

Osborn, H. F., on D.’s observation, 14; on D. and Lamarck, 87; on D.

and criticism, 105; on D.’s change in attitude, 120; on D.’s fame,

124; on D.’s appearance, 168; on ethical effect of evolution, 222.

Owen, Sir Richard, and evolution, 103, 107, 111.

Oxford, Bishop of, attack on evolution, 103.

Pangenesis, D.’s theory, 68.

Parker, G. H., on evolution, 125.

Pascal, Blaise, on man, 275.

Pasteur, Louis, and objections, 72; scientific ardor, 265.

Patience, D.’s, 28; element in scientific spirit, 29, 253.

Pearson, Karl, on D. and imagination, 51.

Pedantry, and scientific spirit, 257.

Perry, R. B., on evolution, 125.

Pessimism, and evolution, 233; Sainte-Beuve’s, 272, 276; Goethe’s,

274.

Philosophy, D. and self-analysis, 16; D. and metaphysics, 69;

evolutionary, 233.

Poetry, D.’s attitude, 146-48; Sainte-Beuve and, 268.

Politics, D. and, 131-33; influence of evolution, 222.

Pragmatism, and evolution, 234.

Prayer, D.’s attitude, 161-63.

Primogeniture, D.’s attitude, 136.

Pugnacity, and scientific spirit, 261.

Realism, as fruit of evolution, 225.

Reason, and instinct, 277-79; as agent of scientific spirit, 279;

evolutionary contradictions, 280, 282; and attainment of truth, 281.

_See also_ Deduction; Scientific spirit.

Religion, D.’s attitude, 156-67; pre-Darwinian theology, 208; and

Copernicus’s speculations, 209; theological effect of evolution,

209; D.’s attitude toward effect, 209-13; ethical standards under

evolution, 213-15, 219; evolution and belief in future life, 215,

216; and belief in God, 216-18, 229; and democracy, 223; evolution

and hell and heaven, 227, 228; fundamentalism, 232, 237, 282;

clerical harmonizing with evolution, 236; scientific harmonizing,

237-39; egocentric _versus_ ethnocentric, 239, 240; persistence, 240;

thirst for God, 285.

Renan, J. E., effect of evolution on, 241.

Research, element in scientific spirit, 250.

Revision, D.’s trait, 73, 118; element in scientific spirit, 255-57.

Royer-Collard, Paul, on facts, 44.

Ruskin, John, on vision of artists, 11.

St.-Hilaire, Auguste, and evolution, 85.

Sainte-Beuve, C. A., observation of humanity, 9, 267, 268; type, 54;

on absorption of interest, 128; and poetry, 148, 268; and scientific

spirit, 266-70; concreteness, 269; on Goethe, 271; pessimism and

sexual immorality, 272-74, 76.

Schelling, F. W. J. von, and evolution, 233.

Scherer, Edmond, on tolerance, 262; on man, 275.

Schopenhauer, Arthur, and evolution, 233.

Scientific spirit, motives of achievements, 96-101, 248, 249;

research, 250; industry, 251-53; patience, 253; caution, 254;

flexibility and impartiality, 255; lack of pedantry, 257-59; and

human nature, 259, 262; humility, 260; tolerance, 261; and pugnacity,

261; appreciation, 263; ardor, 264; illustrations: Sainte-Beuve,

266-70; Goethe, 270, 271; and spiritual blight, 272-76; inadequacy,

277; and instinctive action, 278, 279; reason as agent, 279; and

self-dissection, 279; and self-contradictions, 280; and unattainable

truth, 281-83; and ignorance and hope, 283-85. _See also_ Deduction;

Observation.

Scott, Sir Walter, industry, 252.

Sedgwick, Adam, and D., 205.

Self-dissection, as betrayal of scientific spirit, 279.

Sénancour, É. P. de, on nature, 153; self-dissection, 280.

Sexual selection, D.’s theory, 66, 67.

Shakespeare, William, vitality, 126; D.’s opinion, 147.

Shaw, G. B., and religion and evolution, 237.

Shelley, P. B., and nature, 152.

Sin, effect of evolution on belief, 231.

Slavery, D.’s antipathy, 134.

Smoking, D. and, 182.

Snuff, D.’s indulgence, 183.

Socialism, and evolution, 224.

Society, D. and, 173, 178.

Spencer, Herbert, and ‘survival of the fittest,’ 5, 91; D. on, 47,

78; type, 54; and universal evolution, 121, 219.

Spinoza, Baruch, type, 53.

Spiritualism, and evolution, 238.

Sport, D.’s attitude, 174-76.

Statement, accuracy, 22-24.

Stephen, Leslie, on D., 169.

Sterne, Laurence, on observation, 7; on doing, 277.

Study. _See_ Observation.

Survival of the fittest. Spencer’s term, 5, 91.

Sympathy, and observation, 34-38.

System, D. and, 30, 183.

Theater, D.’s attitude, 139.

Theology. _See_ Religion.

Thoreau, H. D., and observation of nature, 13; on knowledge as aid to

observation, 39; and deduction, 48.

Thrift, self-contradiction, 280.

Tolerance, D.’s trait, 79, 80; element in scientific spirit, 261-63.

Tolstoi, Leo, effect of evolution on, 241.

Torrey, Bradford, on observation, 8.

Truth, instinct as element in scientific spirit, 265, 275; Goethe’s

characteristic, 270; unattainable, 281-83; ignorance and hope,

283-85.

Turner, Sir William, on D. and information, 24.

Twain, Mark, effect of evolution on, 243.

Vivisection, D.’s attitude, 136.

Voltaire, and tolerance, 261; on study, 277.

Wallace, A. R., on collecting, 43; and D.’s sexual-selection theory,

66, 67; and presentation of evolutionary theory, 93, 94; relations

with D., 94, 95; and spiritualism, 238.

Water cure, D.’s subjection to, 181.

Wedgwood, Emma, Mrs. Darwin, 4.

Weisman, August, on deduction, 70; and evolution, 122, 218.

Wells, H. G., and religion and evolution, 237.

Westminster Abbey, D.’s tomb, 6.

White, Gilbert, and nature, 12.

Whitehead, A. N., on D.’s caution, 125; and evolution, 235, 246; on

scientific flexibility, 255.

Wiesner, Julius, courtesy, 262.

Wisdom, and knowledge, 44. _See also_ Deduction.

Wordsworth, William, and nature, 151.

Zola, Émile, as realist, 226, 241.

Transcriber’s Notes

pg 120 Changed: excuses any earlier undue insistance to: excuses any

earlier undue insistence

pg 241 Changed: Nietsche grew into the cloudy and colossal phantom

to: Nietzsche grew into the cloudy and colossal phantom

Darwin · 第 7 / 7 章