In my last lecture I spoke of the small effect, or want of effect, which

a mere intellectual training in the liberal arts might have upon the

average morals of a large society. To-day I propose to take you into a

higher atmosphere, and consider what occupied the élite of Greek society

in their advanced education, and in their speculations on the nature of

things. You must not underrate the enormous advantages the well-born

youth then possessed in training his mind, as compared with the youth of

to-day. In the first place, a very moderate income would keep a

household in comfort, and remove all the grinding care which, in this

our modern life with its myriad exigencies, torments so many respectable

families. In the next place, the demon of competition had not invaded

these states, nor was it possible to do as I and many others have done,

to be a slave for some years in order to obtain a competence by passing

first in a single examination. In the third place, there was no object

in travelling long distances. What was worth seeing, lay within easy

reach. In modern life there is only Holland, and perhaps Northern Italy,

which offers the same delights within short distances. The huge amount

of time spent by Americans in travelling is perhaps one of the most

serious obstacles to their intellectual advancement. If North America

were compressed into one tenth its size, its inhabitants might gain some

leisure for better education.

The obvious thing that will strike any intelligent American, who has

only heard of Plato, and wants to make his acquaintance through Jowett’s

noble translation, is the amount of time these Dialogues waste in

arriving at a conclusion. Nay often they represent a very long

conversation which comes to no conclusion at all. Yet that feature is

essential to all higher training of the human mind. You may appear to

the vulgar to be wasting time, and yet it is not wasting time, but doing

the best you can for a great object. The earth moving in its orbit need

not delay its regular course because it revolves upon its axis, and

causes its whole surface to enjoy the blessed light of the sun. And the

next thing you will find in Plato’s Dialogues (the best exponent of

higher education I know) is that the objects in view are not those of

sense, or of the material needs of life, or of obtaining success in the

world. They all, like Saint Paul’s reasonings with Felix, have to do

with righteousness and temperance, and judgment to come. But even this

field, that of ethical inquiry, is not the highest to which Greek

education attained. For their early teachers taught them to think about

the universe and its constitution, the nature of mind, the nature of

matter, and other high questions of abstract metaphysic.

A notable point about this Greek philosophy is that the priest or the

enchanter has nothing to say to it. The sage was a layman, who need fear

no pope, no ban of the Church, in using his reason freely upon the

problems even of theology. There were indeed isolated cases, where a man

who denied the existence of the traditional gods, or was supposed so to

do, was pursued by popular indignation. Diagoras of Melos, called the

atheist, was driven from the societies which thought such teaching

dangerous; Socrates was prosecuted in like manner, because he was

suspected of spreading scepticism among the youth, but he was executed

only because he behaved in a manner highly contumacious to the

established order of the State. Had he defended himself in the ordinary

routine, he would at most have been subjected to a fine. These isolated

cases are only mentioned lest you should imagine that they were typical.

Greek philosophy being secular, was therefore free.

The earliest thinkers, those of the Ionic school, set themselves to

solve by speculation the very question which now engrosses our deepest

researches in physics. They thought out, or they inferred from their

observations, that “things are not as they seem”; they found out, what

we have attained by long experiment, that the many qualities our senses

perceive are not fundamental or primary, that as Descartes and Locke and

Spinoza taught, mechanical composition and varying degrees of motion in

minute particles of the same kind may produce wholly diverse

impressions. The most obvious and striking of these to the ordinary man

is the case of colour. Descartes had anticipated that the pace of the

rotation of particles made the differences; we know now that it is not

rotation, but vibration of ether, and so with variation in tones. But

the differences both of colours and sounds are due to the more or less

rapid motion of the vibration. This was what Thales and Anaximenes and

Anaximander felt when they said that the world consisted of one

element, that moisture, caloric, ether, were the primitive stuff of

which the world was composed. And these famous men were not mere

metaphysicians, they showed their intellectual greatness in various

ways. Thales actually predicted an eclipse, to the astonishment of his

contemporaries.[45] He showed them that the lesser bear, ending in the

pole star, was a better indication for the sailor to use than the

greater. He solved the problem of measuring the height of an

inaccessible object by comparing its shadow with that of a small one

within reach. He gave valuable advices in politics. So that his

metaphysic was both the source and the climax of a wide mental activity.

So with Anaximander. He attempted the first map of the known world and

made signal advances in astronomy. Anaximenes declared that eclipses

were the concealing of one heavenly body by the interposition of

another. These were great feats; but they were nothing in comparison to

the bold attempts at solving the problem of the origin and nature of the

world, wherein their speculations, often erroneous, nevertheless left a

residuum of thoughts that were the seeds of all our higher philosophy.

If Thales laid it down that in all the varieties of plant and animal

life there was a common element which was their real or original

substance, Anaximander thought that caloric (or the igneous principle)

was necessary to develop the original material. His book is lost, and

his views not clear to us, but we know that his geological observations

told him that our world had once been covered with water, from which

land had emerged. He was moreover the first to maintain that nothing was

eternal except the primeval substance of things.

The cloud-capped towers, the gorgeous palaces,

The solemn temples, the great globe itself,

Yea, all which it inherit, shall dissolve,

And, like the baseless fabric of this vision,

Leave not a rack behind. We are such stuff

As dreams are made on; and our little life

Is rounded with a sleep.

In the largest sense, even applying it to the gods of the Greek

Pantheon, did he assert this colossal doctrine. Anaximenes went further,

and, assuming that the particles of ether are the most subtle in the

universe, he set up the principle of rarification and condensation of

matter, asserting that this was the one great cause of the differences

in the bodies we perceive. This then was the first expression of the

doctrine of the Atomists, which has lasted to the present day.

It is a common piece of arrogance among experimentalists to say that

these wonderful anticipations of modern science were mere gropings in

the dark, supported not by experiment, but by what we should call

superficial observations. The wonder is all the greater that these men

should in their theories have gone to the root of the matter, and

thought out the metaphysical possibilities of the composition of the

world. Abstract thinking--theory--is after all the true basis of every

great discovery. In complete disregard of the theological cosmogony

derived from the old poets, they openly inaugurated the birth of a

natural science engendered by pure and high thinking.

This is even more signally the case with Heracleitus of Ephesus. But I

can only give you some of his marvellous anticipations in a few words;

to go into any one of these systems would require a whole lecture, not a

passage in this discourse. In the first place he agreed with both his

predecessors, that one subtle element was the foundation of all nature

and this he sought in what the vulgar call fire, but with him a far more

subtle essence, never still for an instant. From this all the universe

had been evolved by a process of cooling, and had developed into earth,

water, and the rest, but in the end these would return into their

original condition, “so that the earth would be rolled up as a scroll,

and the elements dissolved with fervent heat.” This far-off glimpse of

Laplace’s theory, which postulates our whole planetary system starting

from a revolving mass at white heat, is less striking than another that

lays down the principle that there are endless motions in things which

the senses cannot perceive, and that absolute rest is impossible in

nature.

The world was never made;

It will change, but it will not fade.

So let the wind range

For even and morn, ever will be, thro’ eternity.

Nothing was born, nothing will die,

All things will change.[46]

It is but yesterday that the newest physical philosophers have declared

themselves for this doctrine, and tell us that every particle of matter

is made up of lesser particles in perpetual motion. Heracleitus was no

less clear on the relativity of the qualities of matter, which are good

or bad according to the percipient, and from that he drew the

conclusion that apparent contradictions may coexist and that all nature

consists in a perpetual conflict between opposites. Nature is a state of

war said he, using the term in a far deeper sense than did later men.

These amazing conjectures were set down in a quaint, picturesque, but

abstruse treatise, which even Aristotle found difficult to grasp, but if

ever a great imagination sowed seeds in the minds of men, which after

long generations germinated into modern science, it was that of

Heracleitus. His dark enigmas, seasoned with pessimistic utterances,

with supreme contempt of the ordinary public, were always attractive and

stimulating to keen minds.

The next great name in this magnificent series is Pythagoras, whose

influence revolutionised not only the science but the politics and

ethics of Greece, and created new ideals among men, higher and purer

than those of traditional morality. But as I have already said something

of him in a former discourse, I will hurry on to his contemporaries and

his successors.

The founder of the great school of Elea, an old Greek colony of Ionians

in the Italian bay south of Pæstum, was Xenophanes, whose main feature

was a bold criticism of the popular theology, as represented by the

poetry of Homer. He could easily show the moral defects of the denizens

of the Homeric Olympus, and hence inferring their unreality, he pressed

home the great doctrine of the unity of the universe, whether ideal or

real, and the identification of the Maker (if there ever was a Maker)

with his work--a theory which has existed from that day to this under

the name of Pantheism, and as such has fascinated the higher spirits

even among the cold and practical Anglo-Saxons. This feeling of unity in

all the world with the Eternal Cause of the world has indeed appeared in

the far East in other and strange systems of philosophy; but never was

the doctrine discussed with such variety as among the Greeks. Lofty

poetry, hard logic, bitter controversy were all called in to support it,

and among a clear-sighted, sceptical race, like the Greeks, so vague and

transcendent a theory is far more striking and therefore more fruitful

in its spiritual consequences, than when professed by mere ascetics or

anchorites who have no contact with common life, and who will not

condescend to argument. The Greek Pantheists of the early period were

men of high character in public life, respected for their practical

wisdom and their literary eminence, and it was they that forced upon

the world the astounding theory that not only are all the data of our

senses illusory and vain, but that even the assumption of any number of

original elements or substances is idle, and must terminate in the great

_One_, which embraces them all, and merges gods and men, matter and

mind, into that all-embracing Single Being, of whom a forgotten mystic

in a later age (but still a Greek) has used this tremendous metaphor:

the “gods are his laughter, the race of mortal men his tears.”

The positive side of the doctrine was mainly due to Parmenides, of whom

Plato speaks with greater respect than of any other thinker except

Socrates, and it was clearly a further development, or urging to their

extreme consequences, of the older theories which reduced all the

various qualities of the world of sense to the manifestations of a

single substance. But they had each made some one reservation and upheld

one of the data of the senses, but each a different one. Was not

therefore the inference clear that this was but a half-way house, and

that what we call mind and matter are after all not radically distinct

but only separate aspects of the primeval one?

If you think this old-world and idle speculation, I need only refer you

to Descartes, the father of modern scientific metaphysic, who held that

his two universal factors, extension and thought, were after all but

qualities of the one all-embracing substance which he called God; or I

may refer to Spinoza, the spiritual pupil of Descartes, and the most

important Pantheist of the seventeenth, or perhaps of any, century.

The positive arguments in favour of this subtle speculation, which to

the vulgar public of any age must always remain absurd, were in the

first place the untrustworthy character of our senses, which could be

shown not only to be misleading but to give contradictory reports

concerning the same thing; next the general consent of all thinkers that

there must be something permanent and indestructible in the midst of all

the changes of phenomena; then the inability of any perceived substance,

such as water, or air, however subtle, to satisfy this condition of

permanence, and to take a position superior to the attacks of rival

theories. You must therefore abstract more and more from all qualities

till you reach that pure Being, which is all and none, spirit and body,

unity and infinity, eternal, indestructible, invariable, the source and

substance of all that ever did or ever will exist.

You can well imagine how these splendid dreams were regarded by the

clever and practical Greek public, as indeed they have been by average

men from that day to this, whenever the great theory has been stated

afresh by metaphysicians or by mystics. It was the special merit of the

Eleatic Zeno (not the great Stoic who lived far later) to show the

carping critic that the difficulties which had led the philosopher to

discard the senses as guides to truth, can be raised in the case of the

common facts of our everyday life, and that the scoffer cannot solve

them. I lay stress on these intellectual puzzles, because they have

occupied philosophers perpetually down to the present day, and in no

particular case can we affirm more decidedly that the Greeks were the

fathers of modern thinking. And do not for a moment imagine that because

these subtleties lead to no immediate result, they are therefore barren.

You might as well say that physical games and exercises are of no use,

because they merely result in strengthening and improving the human

frame and the human temper, apart from any further result. Now what were

Zeno’s puzzles? I will mention but the most obvious. Is it conceivable

that sound should be made up of non-sounding things? And yet this

absurdity is demonstrable. Drop a single millet seed from your hand upon

the grass. It will not make the smallest noise. Go on with a second, a

third, and so on, till you reach thousands; it is so with them all. Yet

if you turn out a cartful of such seeds, it will make a considerable

noise. How is it possible, if each individual grain is silent? Again,

you imagine that if two bodies are moving in the same direction, one

slower, the other faster, the latter will soon overtake the former. It

is not so, and can be proved impossible. Conceive the swift-footed

Achilles trying to overtake a tortoise, and that he runs one hundred

yards, while the other is crawling but ten. When he has completed his

one hundred, the tortoise is still one ahead, when he has added this

one, the tortoise is still 1/10 ahead, then 1/100, then 1/1000, and so

on _ad infinitum_, for it is mathematically certain that neither series

can ever reach the limit, in the one case of III, in the other of II

yards. Therefore it is demonstrated that Achilles can never in all time

overtake the tortoise.

But we may go even farther and say that the very idea of motion is

inconceivable. Every moving body must move in time, and time is divided

into moments of time. At each moment the moving body must either be in

the place where it is, or the place where it is not. The latter being

manifestly absurd, the body must be in the place where it is. But then

of course it is not moving, for motion can only be defined as a change

of place. Continuous motion is therefore inconceivable.

I need not do more than mention to you, that these very problems, handed

down by Zeno to the schools, formed the subject of interminable disputes

for centuries, and if you even now, with all your boasted progress, take

them in hand, you will not easily find a logical solution. Happily we

are no longer in the condition of those mediæval pedants, of whom we

hear that not a few went mad, or died of brain fever, because they could

not reconcile the foreknowledge and foreordaining of things by God with

the absolute free will of men. Nor are any of you, I sincerely trust,

encumbered with the extraordinary fairness of mind of the mediæval ass

of Buridanus which being set between two bundles of hay exactly and

precisely alike, died of starvation because it could see no possible

reason for preferring to eat the one before the other. Nevertheless, I

trust you will appreciate that the mental subtlety we inherit from the

Greeks is no small part of our education.

But it is not merely in the hard logic of controversy that the Greek

Pantheists have left a great legacy to mankind. If I mistake not, the

higher poetry of these latter days is deeply indebted to that grandiose

theory, that all nature is but one, that all things whether mute or

speaking, whether still or moving, whether fair or hideous, are all the

manifestations of the one great All, the ineffable substance which some

call a world-soul, some the universe, some God, the supreme _One_,

without variableness or shadow of turning, though only apprehended by

man in myriad variations. You can find that view of things in Shelley,

in Wordsworth, in Tennyson, and it is not too much to say that at their

highest moments, and in their noblest verse, they are all inspired with

this Divine intoxication. It is common to call it Platonism, and my old

friend Mr. Shorthouse even wrote an essay to show that the respectable

and orderly Wordsworth could hardly be called a Christian, so saturated

was he with this Pantheistic feeling. His visions of the pre-existence

of the human soul--these were indeed Platonic; his Pantheistic passages

come from the influence which Plato acknowledges, but which he does not

allow to subjugate him. Wordsworth is the most uneven and often prosaic

of poets, but in his greatest moments he too feels that intercommunion

of all nature which is unmistakably Greek and not English--

A sense sublime

Of something far more deeply interfused,

Whose dwelling is the light of setting suns,

And the round ocean and the living air

And the blue sky, and in the mind of man,--

A motion and a spirit, that impels

All thinking things, all objects of all thoughts,

And rolls through all things.

Time fails me to go into the fascinating subject of the Pantheism of

Tennyson, and of other of our poets. It is indeed only spasmodic, but it

is there, and is a strange note in the singing of an otherwise tame and

prosaic race.

Let us now return to the great procession of the sages of Hellas. It

does not seem necessary to delay long upon Anaxagoras and Empedocles,

though both were very great figures in their day. The principle feature

in both their systems was that they felt the want of some ideal, or

semi-ideal principle to work as a cause in producing the changes in

nature. Anaxagoras postulated the original particles to be very diverse

in quality and to enter into the composition of ordinary things so as

to make up what we call their various qualities. The food we eat, for

example, affects all the various parts of human bodies, however

different, such as the tissue of the flesh, the hair, the nails, the

viscera, because there is in this food, which is made up from corn or

other vegetable and animal substances, an assortment of particles each

of which contributes to nourish the member or part akin to it. If we ask

how external bodies are brought together, and made up into unities,

Anaxagoras felt so keenly the necessity of a moving cause that he set up

his famous _Nous_, which we cannot translate by the word _mind_, for it

was still a material cause, though far more subtle and active than the

rest, such as we now imagine ether to be. But even so, Aristotle speaks

of Anaxagoras as a great and fruitful innovator, inasmuch as he saw that

brute matter cannot begin to act or even to move without some

non-material or spiritual, or ideal cause. From what we know of

Anaxagoras, he advanced but a little step in this direction himself; he

was only groping his way, but to have been pioneer to Plato and to

Aristotle is itself no mean praise. In a similar direction, the famous

Empedocles postulated the principles of Love and Hate, much as we now

postulate Attraction and Repulsion, to explain the varieties, and the

movements, in external nature.

Observe that not one of these Ionic philosophers had yet asserted the

great contrast of mind and matter, the still greater contrast of a

Divine architect and his work. The phenomena of mind seemed to them but

to be the result of a subtle and more impalpable combination of elements

not differing in kind from the nature of material substances. So when a

wholly different school came to review what the ancients had

accomplished, the _Nous_ of Anaxagoras, and the Love and Hate of

Empedocles, were hardly felt to be steps in advance. In fact for a while

the development seemed to be the other way, for the last great theory we

have to notice, before we come to the ideal philosophy of Plato and his

followers, is more decidedly materialistic than all its predecessors.

That is the famous Atomic theory of Leucippus and Democritus, which

maintained that the universe contains no elements but atoms and the

void, the atoms being hard physical particles of only one quality but

capable of myriad mechanical combinations in and by means of the void,

or empty space which existed more or less in every body. As a

hypothesis, this is the simplest that has ever been offered to explain

the constitution of matter; it has consequently lasted all through the

Renascence of learning into the newer age and has formed the very basis

of the modern science of chemistry. The original atoms were not

conceived as mathematical points, or as having any spiritual quality

like the monads of Leibnitz; they were merely very small, impenetrable,

and differing in figure. It was the density of their combination and

hence the small fraction of void spaces in any body which made the

difference of specific gravity, and the difference of their shape

produced other qualities.

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