CHAPTER XVI

THE POWERS OF THE MIND

(Sets forth the fact that knowledge is freedom and ignorance is

slavery, and what science means to the people.)

We have now completed a brief survey of the mind and its powers.

Whatever we may have proved or failed to prove, this much we may say

with assurance: the reader who has followed our brief sketch attentively

has been disabused of any idea he may have held that he knows it all;

and this is always the first step towards knowledge.

The mind is the instrument whereby our race has lifted itself out of

beasthood. It is the instrument whereby we hold ourselves above the

forces which seek to drag us down, and whereby we shall lift ourselves

higher, if higher we are to go. How shall we protect this precious

instrument? How shall we complete our mastery of it? What are the laws

of the conduct of the mind?

The process of the mind is one of groping outward after new facts, and

digesting and assimilating them, as the body gropes after and digests

and assimilates food. The senses bring us new impressions, and we take

these and analyze them, tear them into the parts which compose them,

compare them with previous sensations, recognize difference in things

which seem to be alike, and resemblances in things which seem to be

different; we classify them, and provide them with names, which are, as

it were, handles for the mind to grasp. Above all, we seek for causes;

those chains of events which make what we know as order in the world of

phenomena. And when the mind has what seems to be a cause, it proceeds

to test it according to methods it has worked out, the rules and

principles of experimental science.

It is a comparatively small number of sensations which the body brings

to the mind of itself; it is a narrow world in which we should live if

our minds adopted a passive attitude toward life. But some minds possess

what we call curiosity; they set out upon their own impulse to explore

life; they discover new laws and make new experiences and new

sensations for themselves. The mind forms an idea, and at first, after

the fashion of the ancient Greek philosophers, it glorifies that idea

and sets it in the seat of divinity. But presently comes the empirical

method, which refuses authority to any idea unless it can stand the test

of experiment, and prove that it corresponds with reality. Nowadays the

thinker amasses his facts, and forms a theory to explain them, and then

proceeds to try out this theory by the most rigid method that he or his

critics can devise. If the theory doesn't "work"--that is, if it doesn't

explain all the facts and stand all the tests--it is thrown away like a

worn-out shoe. So little by little a body of knowledge is built up which

is real knowledge; which will serve us in our daily lives, which we can

use as foundation-stones in the structure of our civilization.

By this method of research man is expanding his universe beyond anything

that could have been conceived in the pre-scientific days. Hour by hour,

while we work and play and sleep, the mind of our race is discovering

new worlds in which our posterity will dwell. For uncounted ages man

walked upon the earth, surrounded by infinite swarms of bacterial life

of whose existence he never dreamed. The invisible rays of the spectrum

beat upon him, and he knew nothing of what they did to him, whether good

or evil. He lifted his head and saw vast universes of suns, in

comparison with which his world was a mere speck of dust; yet to him

these universes were globes or lanterns which some divinity had hung in

the sky.

One of the most fascinating illustrations of how the mind runs ahead of

the senses is the story of the planet Uranus, which, less than two

hundred years ago, had never been beheld by the eye of man. A

mathematician seated in his study, working over the observations of

other planets, their motions in relation to their mass and distance,

discovered that their behavior was not as it should be. At certain times

none of them were in quite the right place, and he decided that this

variation must be due to the existence of an unknown body. He worked out

the problem of what must be the mass and the exact orbit of this body,

in order for it to be responsible for the variations observed; and when

he had completed these calculations, he announced to the astronomical

world, "Turn your telescopes to a certain spot in the heavens at a

certain minute of a certain night, and you will find a new planet of a

certain size." And so for the first time the human senses became aware

of a fact, which by themselves they might not have discovered in all

eternity.

Now, the importance of exact knowledge concerning a new planet may not

be apparent to the ordinary man; but if the thing which is discovered

is, for example, an unknown ray which will move an engine or destroy a

cancer, then we realize the worthwhileness of research, and the masters

of the world's commerce are willing to give here and there a pittance

for the increase of such knowledge. But men of science, who have by this

time come to a sense of their own dignity and importance, understand

that there is no knowledge about reality which is useless, no research

into nature which is wasted. You might say that to describe and classify

the fleas which inhabit the bodies of rats and ground-squirrels, and to

study under the microscope the bacteria which live in the blood of these

fleas--that this would be an occupation hardly worthy of the divinity

that is in man. But presently, as a result of this knowledge about fleas

and flea diseases being in existence and available, a bacteriologist

discovers the secret of the dread bubonic plague, which hundreds of

times in past history has wiped out a great part of the population of

Europe and Asia.

Mark Twain tells in his "Connecticut Yankee" how his hero was able to

overcome the wizard Merlin, because he knew in advance of an eclipse of

the sun. And this was fiction, of course; but if you prefer fact, you

may read in the memoirs of Houdin, the French conjurer, how he was able

to bring the Arab tribes into subjection to the French government by

depriving the great chieftains of their strength. He gathered them into

a theatre, and invited their mighty men upon the stage, and there was an

iron weight, and they were able to lift it when Houdin permitted, and

not to lift it when he forbade. These noble barbarians had never heard

of the electro-magnet, and could not conceive of a force that could

operate through a solid wooden floor beneath their feet.

Such things, trivial as they are, serve to illustrate the difference

between ignorance and knowledge, and the power which knowledge gives.

The man who knows is godlike to those who do not know; he may enslave

them, he may do what he pleases with their lives, and they are powerless

to help themselves. Anyone who would help them must begin by giving them

knowledge, real knowledge. There is no such thing as freedom without

knowledge, and it must be the best knowledge, it must be new knowledge;

he who goes against new knowledge armed with old knowledge is like the

Chinese who went out to meet machine-guns with bows and arrows, and with

umbrellas over their heads.

Once upon a time knowledge was the prerogative of kings and priests and

ruling castes; but this supreme power has been wrested from them, and

this is the greatest step in human progress so far taken. "Seek and ye

shall find," is the law concerning knowledge today. "Knock, and it shall

be opened unto you." In this, my Book of the Mind, I say to you that

knowledge is your priceless birthright, and that you should repudiate

all men and all institutions and all creeds and all formulas which seek

to keep this heritage from you. Beware of men who bid you believe

something because it is told you, or because your fathers believed it,

or because it is written in some ancient book, or embodied in some

ancient ceremonial. Break the chains of these venerable spells; and at

the same time beware of the modern spells which have been contrived to

replace them! Beware of party cries and shibboleths, the idols of the

forum, as Plato called them, the prejudices which are set as snares for

your feet. Beware of cant--that paraphernalia of noble sentiments,

artificially manufactured by politicians and newspapers for the purpose

of blinding you to their knaveries. Remember that you live in a world of

class conflicts; at every moment of your life your mind is besieged by

secret enemies, it is exposed to poison gas-clouds deliberately released

by people who seek to make use of you for purposes which are theirs and

not yours. In the fairy-tales we used to love, the hero was provided

with magic protection against the perils of those times; but what hero

and what magic will guard the modern man against the propaganda of

militarism, nationalism, and capitalist imperialism?

The mind is like the body in that it can be trained, it can be taught

sound habits, its powers can be enormously increased. There are many

books on mind and memory training, some of which are useful, and some of

which are trash. There is an English system widely advertised, called

"Pelmanism," of which I have personally made no test, but it has won

endorsements of a great many people who do not give their endorsements

lightly.

This is the subject of applied psychology, and just as in medicine, or

in law, or in any of the arts, there is a vast amount of charlatanry,

but there is also genuine knowledge being patiently accumulated and

standardized. When the United States government had to have an army in a

hurry it did not make its millions of young men into teamsters or

aviators at random. It used the new methods of determining reaction

times, and testing the coordination of mind and body. Recently I visited

the Whittier Reform School in California, where delinquent boys are

educated by the state. A boy had been set to work in the tailor shop,

and it had been found that he was unable to make the buttons and the

buttonholes of a coat come in the right place. For nine years the state

of California, and before it the state of Georgia, had been laboring to

teach this boy to make buttons and buttonholes meet; the effort had cost

some five thousand dollars, to say nothing of all the coats which were

spoiled, and all the mental suffering of the victim and his teachers.

Finally someone persuaded the state of California to spend a few

thousand dollars and install a psychological bureau for the purpose of

testing all the inmates of the institution; so by a half hour's

examination the fact was developed that this boy was mentally defective.

Although he was eighteen years old in body, his mind was only eight

years old, and so he would never be able to achieve the feat of making

buttons and buttonholes meet.

This is a new science which you may read about in Terman's "The

Measurement of Intelligence." By testing normal children, it is

established that certain tasks can be performed at certain ages. A child

of three can point to his eyes, his nose and his mouth; he can repeat a

sentence of six syllables, and repeat two digits, and give his family

name. Older children are asked to look at a picture and then tell what

they saw; to note omissions in a picture, to arrange blocks according to

their weight, to arrange words into sentences, to note absurdities in

statements, to count backwards, and to make change. Children of fifteen

are asked to interpret fables, to reverse the hands of a clock, and so

on. Of course there are always variations; every child will be better at

some kinds of tests than at others. But by having a wide variety, and

taking the average, you establish a "mental age" for the child--which

may be widely different from its physical age. You may find some whose

minds have stopped growing altogether, and can only be made to grow by

special methods of education. Enlightened communities are now conducting

separate schools for defective children--replacing the old-fashioned

schoolmaster who wore out birch-rods trying to force poor little

wretches to learn what was beyond their power.

In the same way psychology can be applied in industry, and in the

detection of crime. Here, too, there is a vast amount of "fake," but

also the beginning of a science. Our laws do not as yet permit the use

of automatic writing and the hypnotic trance in the investigation of

crime, but they have sometimes permitted some of the simpler tests, for

example, those of memory association. The examiner prepares a list of a

hundred names of objects, and reads those names one after another, and

asks the person he is investigating to name the first thing which is

suggested to him by each word in turn. "Engine" will suggest "steam," or

perhaps it will suggest "train"; "coat" will suggest "trousers," or

perhaps it will suggest "pocket," and so on. The examiner holds a

stop-watch, and notes what fraction of a second each one of these

reactions takes. The ordinary man, who is not trying to conceal

anything, will give all his associations promptly, and the reaction

times will be approximately alike. But suppose the man has just murdered

somebody with an axe, and buried the body in a cellar with a fire

shovel, and taken a pocketbook, and a watch, and a locket, and a number

of various objects, and climbed out of the cellar window by breaking the

glass; and now suppose that in his list of a hundred objects the

psychologist introduces unexpectedly a number of these things. In each

case the first memory association of the criminal will be one which he

does not wish to give. He will have to find another, and that inevitably

takes time. One or two such delays might be accidental; but if every

time there is any suggestion of the murder, or the method or scene of

the murder, there is noticed confusion and delay, you may be sure that

the conscious mind is interfering with the subconscious mind. The

difference between the conscious and the subconscious mind is always

possible to detect, and if you are permitted to be thorough in your

experiments, you can make certain what is in the subconscious mind that

the conscious mind is trying to conceal.

Here, as everywhere in life, knowledge is power, and expert knowledge

confers mastery over the shrewdest untrained mind. The only trouble is

that under our present social system the trained mind is very apt to be

working in the interest of class privilege. The psychologist who is

employed by a great corporation, or by a police department, may be as

little worthy of trust as a chemist who is engaged in making poison

gases to be used by capitalist imperialism for the extermination of its

rebellious slaves. But what this proves is not that scientific knowledge

is untrustworthy, but merely that the workers must acquire it, they must

have their own organizations and their own experiments in every field.

To give knowledge to the masses of mankind, slow and painful as the

process seems, is now the most important task confronting the

enlightened thinker.

The method of psychoanalysis gives us also much insight into the

phenomena of genius, and the hope that we may ultimately come to

understand it. At present we are embarrassed because genius is so often

closely allied to eccentricity; the supernormal appears in connection

with the subnormal--and it is often hard to tell them apart. Great poets

and painters in revolt against a world of smug commercialism, adopt

irresponsibility as their religion; they live in a world of their own,

they dress like freaks, they refuse to pay their debts, or to be true to

their wives. They are followed by a host of disciples, who adopt the

defects of the master as a substitute for his qualities. And so there

grows up a perverted notion of what genius is, and wholly false

standards of artistic quality. There is nothing mankind needs more than

sure and exact tests of mental superiority; not merely the ability to

acquire languages and to solve mathematical equations, but the ability

to carry in the mind intense emotions, while at the same time shaping

and organizing them by the logical faculty, selecting masses of facts

and weaving them into a pattern calculated to awaken the emotion in

others. This is the last and greatest work of the human spirit, and to

select the men who can do it, and foster their activity, is the ultimate

purpose of all true science.

The Book of Life · 第 16 / 50 章