While the Idols of the Tribe, then, are common human frailties in

thought, and the Idols of the Cave the perturbations resulting from

individual idiosyncrasies, there are other Idols "formed by the

intercourse and association of men with each other," which Bacon calls

"Idols of the Market Place, on account of the commerce and consort of

men there." By reason of its manifold and necessary imperfections--its

looseness, variability, ambiguity, and inadequacy--the language we are

forced to employ for the embodiment and interchange of ideas plays

ceaseless havoc with our thought, not only introducing confusion and

misconception into discussion, but often, "like the arrows from a

Tartar bow," reacting seriously upon our minds. A large part of the

vocabulary to which we must perforce have recourse, even when dealing

with the most abstruse and delicate subjects, is made up of words

taken over from vulgar usage and pressed into higher service; they

carry with them long trains of vague connotations and suggestions; the

superstitions of the past are often imbedded in them; no one can ever

be absolutely certain of their intellectual values. While, therefore,

they may do well enough for the rough needs of daily life, they prove

sadly defective when required for careful and exact reasoning. And

even with that small and comparatively insignificant portion of our

language which is not inherited from popular use, but fabricated by

philosophers themselves, the case is not much better. Every word, no

matter how cautiously employed, inevitably takes something of the tone

and color of the particular mind through which it passes, and when put

into circulation fluctuates in significance, meaning now a little

more and now a little less.[25] What wonder, then, that "the high and

formal discussions of learned men" have so often begun and ended in

pure logomachy, and that in discussions which are neither high nor

formal and in which the disputants talk hotly and carelessly the

random bandying of words is so apt to terminate in nothing beyond the

darkening of counsel and the confusion of thought?

[Footnote 25: The need of a language of rigid mathematical

precision for the purposes of philosophic thought and discussion

has long been the subject of remark. Hence Bishop Wilkins's Essay

toward a real character and a philosophic language (1668), and

the earlier Ars Signorum of George Dalgarno--boldly presented by

its inventor as a "remedy for the confusion of tongues, as far as

this evil is reparable by art." We may give these ingenious

authors full credit for the excellent intentions with which they

set out on impossible undertakings. A philosophic language may

perhaps be attained in the millennium, but then probably it will

be no longer needed. Meanwhile readers interested in the history

of the mad scheme called Volapük may find some curious matter in

these rare works.]

Bacon notes two ways particularly in which words impose on the

understanding--they are employed sometimes "for fantastic suppositions

... to which nothing in reality corresponds," and sometimes for actual

entities, which, however, they do not sharply, correctly, and

completely describe. The eighteenth century speculated at length on a

state of Nature and the social contract, unaware that it was deluding

itself with unrealities, and we have not yet done with such

abstractions as the Rights of Man, Nature (personified), Laws of

Nature (conceived as analogous to human laws), and the Vital

Principle. The more common and serious danger of language, however,

lies in the employment of words not clearly or firmly grasped by the

speaker or writer--words which, in all probability, he has often heard

and used, and which he therefore imagines to represent ideas to him,

but which, closely analyzed, will be found to cover paucity of

knowledge or ambiguity of thought. Cause, effect, matter, mind, force,

essence, creation, occur at once as examples. Few among those who so

glibly rattle them off the tongue have ever taken the trouble to

inquire what they actually mean to them, or whether, indeed, they can

translate them into thought at all.

Among the Idols of the Market Place we must also class the evils

arising from the tendency of words to acquire, through usage and

association, a reach and emotional value not inherent in their

original meanings. This is what Oliver Wendell Holmes happily

described as the process of polarization. "When a given symbol which

represents a thought," said the Professor at the Breakfast Table, "has

lain for a certain length of time in the mind it undergoes a change

like that which rest in a certain position gives to iron. It becomes

magnetic in its relations--it is traversed by strange forces which

did not belong to it. The word, and consequently the idea it

represents, is _polarized_." The larger part of our religious and no

small portion of our political vocabulary consist of such polarized

words--words which, on account of their acquired magnetism, unduly

attract and influence the mind. We can never hope to think calmly and

clearly while the very symbols of our thoughts thus possess a kind of

thaumaturgic power over us, which in turn readily transfers itself to

our ideas.

If, then, "words plainly force and overrule the understanding and

throw all into confusion and lead men away into numberless empty

controversies and idle fancies," it behooves us to watch closely the

interrelations of language and thought. To put it in the vernacular,

we must at all times make sure that we know what we are talking about

and say what we mean. To this end the study of language itself is

useful, but the habits of precise thought and expression will never be

acquired by linguistic exercise alone. To use no word without a

distinct idea of what it means to us as we speak or write it; to

check, when necessary, the process of thought by constant redefinition

of terms; to depolarize all language that has become, or threatens to

become, magnetic, thus translating familiar ideas into "new, clean,

unmagnetic" phraseology, these may be set down as first among the

rules to which we should tolerate no exception.

We now come to the last group of Idols--those "which have immigrated

into men's minds from the various dogmas of philosophies, and also

from wrong laws of demonstration." These Bacon calls Idols of the

Theater, "because in my judgment all the received systems are but so

many stage-plays, representing worlds of their own creation after an

unreal and scenic fashion." And perhaps this conceit carries further

than Bacon himself intended, for it not only suggests the

unsubstantial character of philosophic speculations, but also reminds

us how, in the world's history, these airy fabrics have succeeded each

other as on a stage, some to be hissed and some applauded, but all

sooner or later to drop out of popular favor and be forgotten.

Dealing with these Idols of the Theater, or of Systems (of which there

are many, "and perhaps will be yet many more"), Bacon takes the

opportunity of criticising, briefly but incisively, the methods and

results of ancient and mediæval philosophers. His classification of

false systems is threefold: The sophistical, in which words and the

finespun subtilties of logic are substituted for "the inner truth of

things"; the empirical, in which elaborate dogmas are built up out of

a few hasty observations and ill-conducted experiments; and the

superstitious, in which philosophy is corrupted by myth and

tradition. Under the first head, Bacon again instances Aristotle, whom

he accuses of "fashioning the world out of categories"; under the

second he glances especially at the alchemists; and under the third he

refers to Pythagoras and Plato. To follow Bacon into these historic

issues does not belong to our present purpose. Suffice it to notice

the continued vitality of these three classes of speculative error.

Bacon's judgment of Aristotle--that "he did not consult experience as

he should have done, in order to the framing of his decisions and

axioms; but, having first determined the question according to his

will, he then resorts to experience, and, bending her into conformity

with his placets, leads her about like a captive in a procession"--is

at least equally applicable to thinkers like Hegel and his followers.

Empiricism has by no means been eliminated from the scientific or

would-be scientific world. And as for the philosophy which is

corrupted by myth and tradition, the countless attempts that are still

made to "reconcile" the facts of science with the data and

prepossessions of theology are enough to prove that, _mutato nomine_,

the methods of Pythagoras and Plato and of those who in Bacon's day

sought "to found a system of natural philosophy on the first chapter

of Genesis, on the book of Job, and other parts of the sacred

writings," are as yet far from obsolete.

It is hardly necessary to call attention to the fact that there is a

close similarity between systematic empiricism and some of the dangers

brought out in connection with the Idols of the Tribe, for in each

case stress must be laid on the tendency to generalize hastily, depend

on scattered and inadequate data, and seek for light in the

"narrowness and darkness" of insufficient knowledge. This matter is

important only as showing how a common weakness may be caught up and

dignified in a philosophic system and rendered more dangerous by the

adventitious weight and influence which it gains thereby. Another

point, not distinctly dealt with by Bacon, calls, however, for special

remark. While the various Idols of the Theater, or of Systems,

exercise their own peculiar and characteristic influences for evil,

they all tend to the debasement of thought by reason of the authority

which they gradually acquire. Associated with great names, promulgated

by schools, officially expounded by disciples and commentators, they

finally settle into a creed which is regarded as having oracular and

dogmatic supremacy. The formula "Thus saith the Master" closes

discussion. Not the fact itself, but what this or that teacher has

said about the fact, comes at last to be the all-important question.

In the condition of mind thus engendered there is no chance for

intellectual freedom, self-reliance, growth. Lewes related an anecdote

of a mediæval student "who, having detected spots in the sun,

communicated his discovery to a worthy priest. 'My son,' replied the

priest, 'I have read Aristotle many times, and I assure you that there

is nothing of the kind mentioned by him. Go rest in peace, and be

certain that the spots which you have seen are in your eyes, and not

in the sun.'"[26] Such an incident forms an admirable commentary on

the saying of the witty Fontenelle that Aristotle had never made a

true philosopher, but he had spoiled a great many. The position

assumed is simple enough: Aristotle _must_ be right, therefore

whatever does not agree with the doctrines of the Stagirite must be

wrong. Are your facts against him, then revise your facts. Come what

may of it, you must quadrate knowledge with accepted system. Here is

the theological method in a nutshell. And the theological method has

only too often been the method also of the established philosophic

schools.

[Footnote 26: History of Philosophy, vol. ii, pp. 95, 96.]

In our own relations with these Idols of the Theater the first and

last thing to remember is that all systems are necessarily partial and

provisional. "They have their day and cease to be," and at the best

they only mark a gradual progress toward the truth. There can be no

finality, no closing word authoritatively uttered. Our attitude toward

the systems of the past and the present, toward long-accepted

traditions, and dogmatically enunciated conclusions, must be an

attitude of firm and steady--of respectful, it may be, but still firm

and steady--independence. We must resist the tendency to passive

acquiescence, and endeavor to combine with generous hospitality to all

ideas the habit of not accepting anything merely because it is stated

_ex cathedra_, or is backed by an influential name, or can "plead a

course of long observance for its use." Perhaps to wean ourselves from

this particular form of idolatry there is nothing so helpful as a wide

and constant study of the history of thought. The pathway of

intellectual development is strewn with outgrown dogmas and exploded

systems. How fatuous, then, to accept, whole and untested, the

doctrine of any master, new or old, believing that his word will give

us complete and undiluted truth!

* * * * *

So much, then, we may say with Bacon "concerning the several classes

of Idols and their equipage, all of which must be renounced and put

away with a fixed and solemn determination, and the understanding

thoroughly freed and cleansed; the entrance into the kingdom of man,

founded on the sciences, being not much other than the kingdom of

heaven, whereinto none may enter except as a little child." It may

perhaps be urged that the result of such a survey as we have taken of

the obstacles to clear thought is to leave the mind dazed and

discouraged, partly because the suggestions made for the conquest of

these obstacles, though easily formulated in theory are difficult and

sometimes impossible in practice, and partly because the general if

not expressed tendency of our analysis is (it may be said) in the

direction of that Pyrrhonic skepticism which "doomed men to perpetual

darkness." To the former objection I have only to reply that it is one

to which all discussions of the principles and problems of conduct are

necessarily open. "If to do were as easy as to know what were good to

do, chapels had been churches, and poor men's cottages princes'

palaces."[27] None the less, to state as lucidly as we can what were

good to do under certain circumstances is properly regarded as part of

the business of ethics. The other point is touched upon by Bacon

himself in words which it would be impertinent to seek to better: "It

will also be thought that by forbidding men to pronounce and set down

principles as established until they have duly arrived through the

intermediate steps at the highest generalities, I maintain a sort of

suspension of the judgment, and bring it to what the Greeks call

_acatalepsia_--a denial of the capacity of the mind to comprehend

truth. But in reality that which I meditate and propound is not

_acatalepsia_, but _eucatalepsia_; not denial of the capacity to

understand, but provision for understanding truly; for I do not take

away authority from the senses, but supply them with helps; I do not

slight the understanding, but govern it. And better surely it is that

we should know all that we need to know, and yet think our knowledge

imperfect, than that we should think our knowledge perfect, and yet

not know anything we need to know."

[Footnote 27: This quotation is _not_ from Bacon.]

MATHEMATICS FOR CHILDREN.

BY M. LAISANT.

Except with persons having specially favorable surroundings, I believe

that the vast majority of parents have a feeling of dread at the

thought of putting their children to the study of mathematics. They

know that the child must learn something about it in order to pass his

examinations; but with this knowledge goes an apprehension of loading

his mind with those ideas which are so complicated and hard to

acquire, and we put off the dreaded moment of setting him to work as

late as possible.

While I believe it is wise to spare the child all useless overwork, I

am persuaded also that the best way of sparing him is not to shrink

from initiating him into hard work, if that can be done in a rational

way.

I regard all the sciences as, at least to a certain extent,

experimental, and, notwithstanding the views of those who would regard

the mathematical sciences as a series of operations in pure logic,

resting upon strictly ideal conceptions, I believe that we may affirm

that there does not exist a mathematical idea that can enter our brain

without the previous contemplation of the outer world and the facts it

offers to our observation. This affirmation, the discussion of which

now would carry us too far, may help to a clear idea of the way we

should try to convey the first mathematical ideas to the mind of the

child.

The outer world is the first thing the child should be taught to

regard and concerning which he should be given as much information as

possible--information which he will have no trouble in storing, we may

well believe, and from this outer world the first mathematical notions

should be borrowed; to these should succeed later an abstraction,

which is less complicated than it seems.

Our primary teaching of arithmetic now follows in the tracks of that

of grammar, as we might as well say that the teaching of grammar

follows in the tracks of that of arithmetic. That is, in either case

we teach the child a number of abstract and confusing definitions

which he can not comprehend, imposing on him a series of rules to

follow under the pretext of giving him a good practical direction, and

we force him to learn and memorize these rules whether they are good

for anything or not.

When the child has grown older he is given two or three short lessons

a week in science, nine tenths of which, with his fleeting memory, he

forgets before the next week's lessons come on. He can not relish

anything that is taught him in that way, and it would be vastly better

to give him no scientific ideas at all than to scatter them around in

such a way, for all teachers agree that a fresh pupil is more easily

dealt with and can be taught more satisfactorily and thoroughly than

one who has been mistaught.

When the student has passed through it all and has established himself

in life he is apt to look back upon his experiences under such

teachings in no very amiable mood, and to regard such matters in the

light of barriers that were set up to prevent his getting his diploma

with too little work; and even if his profession is one that calls for

applications of mathematics he prepares himself with sets of formulas

that enable him to dispense with the imperfect instruction he has

received.

When we think of giving a child a mathematical education we are apt to

ask whether he has special aptitudes fitting him to receive it. Do we

ask any such questions when we talk of teaching him to read and write?

Oh, no! we all acknowledge that reading and writing are useful,

practical, and indispensable arts, which every human being not infirm

or defective should learn. Now, elementary mathematics, which

represents a tolerably extended equipment, is no less useful and

indispensable than the knowledge of reading and writing, and I assert

further, what may seem paradoxical to many, that it can be assimilated

with much less fatigue than the earliest knowledge of reading and

writing, provided always that instead of proceeding in the usual way

and giving lessons bristling with formulas and rules, appealing to the

memory, imposing fatigue, and producing nothing but disgust, we adopt

the philosophical method of conveying ideas to the child by means of

objects within reach of his senses. The teaching should be wholly

concrete and applied only to the contemplation of external objects and

their interpretation, and the instruction should be given continually,

especially during the primary period, under the form of play. Nothing

is easier than this, then, in arithmetic; for instance, to use dice,

beans, balls, sticks, etc., and by their aid give the child ideas of

numbers.

Do we do anything of this kind? When I was taught to read and write I

knew how to write the figure 2 before I had any idea of the number

two. Nothing is more radically contrary to the normal working of the

brain than this. The notion of numbers--up to 10, for example--should

be given to the child before accustoming him to trace a single

character. That is the only way of impressing the idea of number

independently of the symbol or the formula which is only too ready to

take the place in the mind of the object represented by it.

When a child has learned to count through the use of such objects as I

have mentioned he may be taught what is called the addition table.

This table can be learned by heart easily enough, but when we reach

the multiplication table we come upon one of the tortures of

childhood. Would it not be simpler and easier to make the children

construct these tables, instead of making them learn them?

[Illustration: FIG. 1.]

Let us first take the addition table, and suppose that we trace ten

columns on suitably ruled paper, at the top of which we write the

first ten numbers, for example, and then write them again at the

beginning of a certain number of horizontal lines (Fig. 1). Let us

suppose, too, that we have a box divided into compartments arranged

like the squares in our table, into which we put heaps of balls,

beans, or dice corresponding to the numbers indicated in the table.

The child will take, for example, two balls from one compartment and

three from another, will put them together and place his five balls in

the case corresponding with the point where the lines of two and three

will meet, and will thus gradually accustom himself to the idea that

two added to three are equal to five, four and two to six, etc.,

before he knows how to write the corresponding figures. As soon as he

has learned how to write them he can himself make the table with

figures (Fig. 2), showing that one and one make two, one and three

four, etc.

[Illustration: FIG. 2.]

This will be all the easier for him because he will only have to write

the figures in their order in the lines and the columns. This

furnishes an excellent writing exercise after the children have begun

to write figures, and affords besides a certain method of teaching

them the addition table up to nineteen at least. I insist that all

this can be done even before the child knows how to write the figures

by means of an arrangement like a printer's case, and that it will be

as a play, rather than a study, to the child. Hardly anything more

will be required than to bring the toy to the child's notice and leave

him to himself after he has been started with it, and he will get

along the faster the less he is bothered.

A similar process may be adopted with the multiplication table. With a

case like the other, it is only necessary to tell the child that if he

wants to know how much are three times four he has only to make heaps

of four things each, take three of them and put them in the box at the

intersection of the line three and the column four. If he can write

the figures he will write 12, instead of gathering up the twelve

objects that represent the product. When he has played at this for

some time he may become acquainted with all the products up to ten

times ten or beyond without having to make any abnormal effort of

memory.

The idea of numeration, which is usually put off till a later period,

should also be given at the beginning. Children soon understand the

decimal numeration and learn to write 10 for ten, and other numbers

composed of one of the nine ciphers and zero. But the fact which,

however, though quite essential to know, receives very little

attention is that there is nothing particular about this number ten,

and that systems of numeration can be devised resting on any basis

that may be taken; that the principle of every system of numeration

consists in taking a certain number of units and grouping them. Take,

for example, a system having five as its basis. All the numbers of

such a system can be represented with the figures 1, 2, 3, and 4, the

symbol 10 standing in this case for five. To construct a number we

have only to group the units by fives and observe the result.

To learn decimal numeration by this process we put tens of objects

into little boxes, tens of little boxes into larger ones, and so on.

The child can in this way acquire an exact idea of the units of

successive order in any system that may be desired.

This method of teaching was developed in a remarkable way about

thirty years ago by Jean Macé in a little book entitled

_L'Arithmétique du Grand-Papa_--Grandpa's Arithmetic--which made some

impression when it appeared, but has been substantially forgotten.

In this method I attach much importance to giving these exercises a

form of play. I believe that nothing in primary instruction should

savor of obligation and fatigue. It would, on the other hand, be

better to try to induce the child to desire himself to go on, and it

would always be well to try to give him the illusion, in all stages of

instruction, that he is the discoverer of the facts we wish to impress

upon his mind.

Appletons' Popular Science Monthly, October 1899 Vol. LV, May to October, 1899 · 第 8 / 18 段