CHAPTER V

THE INVENTION OF THE GUN AND OF PRINTING

The period from the fall of Rome to the beginning of the fourteenth

century was almost destitute in the matter of inventions that can be

distinctly named: though the conception and carrying into effect of

Mohammedanism in the seventh century, the campaigns and governmental

systems of Charlemagne in the ninth century, the invasion of England by

William of Normandy in the eleventh century, and the Crusades in the

eleventh, twelfth and thirteenth centuries, as well as all the numerous

wars and campaigns that succeeded each other so rapidly, indicate a

mental and nervous restlessness which sought relief in action, and

which received guidance in seeking that relief from the suggestions of

invention.

During the interval, paper is supposed by some to have been invented,

or at least the art of making it from rags. Paper itself, however, had

been invented long before in China.

The early part of the twelfth century opened a new era in Europe with

the introduction of one of the most important inventions ever made, the

gun. It is often said that gunpowder was invented then. Gunpowder, of

course, had been invented or discovered many centuries before.

There is much obscurity about the invention of gunpowder. It is usually

supposed to have been invented in China, and to have crept its way

first to the western Asian nations, and afterwards to Europe by way

of the Mediterranean. There can be little doubt that gunpowder was

known to the Romans in the days of the empire; and some accounts of

Alexander's campaigns declare that he used mines to destroy the walls

of Gaza.

It is supposed by many that the Chinese had cannon, from certain

embrasures in some of their ancient walls; but there seems to be no

absolute proof of this. It seems fairly well established that the Moors

used artillery in Spain in the twelfth century; though some writers

hold that what were called firearms in Europe before the fourteenth

century were only engines which threw fire into besieged places.

It seems probable that the gun was invented as the result of an

accident that occurred while some man was pounding the (gunpowder)

mixture of charcoal, saltpetre and sulphur in a receptacle of some

kind. According to one story, the mixture exploded and threw the pestle

violently out of the mortar. From this incident, the man who was

handling the pestle, or a bystander, is supposed to have conceived the

idea that the powder could be used intentionally to throw projectiles,

and he is supposed also to have actually proved that it could be done

at will, and to have produced a concrete appliance for doing it. From

the history of the case, it would seem that the first gun was what we

still call a "mortar."

It may occur to some that (conceding the story to be true, which it

possibly is, in essentials) the gun was not an invention so much as a

discovery. It may be pointed out, however, that while the fact that

gunpowder would blow a pestle out of a mortar might be truly called

a discovery, yet the conception of utilizing the discovery by making

a weapon, and the subsequent making of the weapon constituted an

invention of the most clean-cut kind.

Let us realize the extreme improbability that the phenomenon of the

expulsive force of gunpowder was then noted for the first time. It

seems probable that accidental ignition of the mixture had often

occurred before, and missiles hurled in all directions in consequence.

But, as happens in the vast majority of all incidents, no one imagined

any possible utilization of the facts disclosed by the incident; and

if the man who invented the gun, after witnessing the expulsion of the

pestle from the mortar, had not been endowed with both imagination

and constructiveness, he would have treated it as most of us treat

an incident--merely as an incident. But the imagination of this man

must at once have conceived a picture of what we now call a mortar,

which should be designed and constructed so that projectiles could

be expelled from it at will, in whatever direction the mortar were

pointing; and then his constructive faculty must have taken up the task

that imagination had suggested, and developed the conception into a

concrete thing.

Into the long, elaborate and exciting history of the development of

the gun, that has been carried on with enormous energy ever since, it

is not necessary at this point to enter. Since the sixteenth century,

its history is accurately known, and many large books are filled with

descriptions and diagrams and mathematical tables and formulæ that

recount its progress in detail; while the histories of all the nations

blaze with stories of the battles in which guns have been employed.

Of all the inventions ever made, it is doubtful if the development

and improvement of any other has enlisted the services of a greater

number of men and of more important men, than the gun. It is more than

doubtful if a greater amount of money has been expended on any other

invention, if a greater number of experiments have been made, or if

more mental and physical energy has been expended. Certain it is

that no other invention has had so direct and powerful an effect on

human beings; for the number of men it has killed and wounded must be

expressed in terms of millions.

This phase of the influence of the gun on history is clearly marked.

Not so clearly marked, but really more important, has been its

influence in deciding wars; for the ways in which wars have been

decided have been the turning points in the march of history. The issue

of Alexander's wars, for instance, had decided that Greek civilization

should not perish, but survive; the issue of Cæsar's wars in Gaul had

decided that Roman civilization should extend north over Europe, and

that the western incursion of the savage Germans should be stopped; the

issue of the wars between the vigorous Goths and degenerate Rome had

decided that Rome must die; and so forth, and so forth. So, after the

invention of the gun, the issue of every succeeding war supplied a new

turning point for history to follow. Naturally, those nations that took

the most skilful, prompt and thorough advantage of the power, range and

accuracy of the new invention gained in almost every case the victory

over their opponents.

So long as no weapons existed, struggles between men had to be

decided by physical strength and cunning and quickness only. When the

first flint fist-hammer was invented, a man who was sagacious enough

and industrious enough and skilful enough to make one, could gain

the victory over many another man of greater physical strength and

quickness, but who had not the sagacity, industry and skill to provide

himself with a flint fist-hammer.

Supposing the flint fist-hammer to be the first invention ever made,

as many think it was, we see here the first instance of the influence

of invention on history; because this first invention influenced the

course of history in favor of men possessing sagacity, industry and

skill, as against men not possessing those qualities. By doing this, it

not only decided that such men (and tribes composed of such men) should

prevail, but did even more to influence history; _it induced men and

tribes to make and develop and utilize inventions_. This resulted in

what we call civilization.

As each improved weapon followed its predecessor, a new demand was

made;--not only for a new kind of skill on the part of the man making

the weapon and on the part of the soldiers using it, but also for

foresight on the part of the tribe or nation that would supply the

weapon to its troops. It is easily realized that, if there were two

contiguous tribes about to go to war against each other, one of which

was ruled by a sagacious, energetic and far-seeing chief, while the

other was ruled by a dull, slothful and short-sighted chief, the former

chief would probably provide his warriors with the newest weapon (say,

the bow and arrow) and train them in its use; whereas the other would

ignore it and go to battle with clubs and javelins only. As between

two tribes otherwise equally matched, the result would be obvious; and

doubtless it was exceedingly obvious in hundreds of tribal battles,

before the dawn of history.

It is a characteristic of evolution, as has been pointed out by wise

men, that complexity eventually evolves from simplicity. In no one

department of man's endeavor does this truth stand out more clearly

than in the evolution of weapons. For the oldest weapon that we know of

was probably a stone, or a stick used as a club; and each succeeding

weapon has been more complicated than its predecessor,--needing

additional parts with which to secure the additional results achieved.

This increased complexity has entailed increased liability to

derangement, because the failure of any one part has entailed the

failure or the decreased effectiveness of the weapon as a whole. This

increased liability to derangement has entailed a demand for not only

increased care and skill in fabricating the weapon, but for increased

knowledge, diligence and skill in caring for it, and using it.

The superiority of the gun over all previously existing weapons was

quickly recognized, and every civilized nation soon adopted it as

its major implement of war. As the gun was a piece of mechanism, it

possessed the attribute which seems to give to pieces of mechanism an

element of superiority over every other thing in the universe, the

attribute of continual improvability. Human beings do not possess this

attribute, nor does any other thing in nature, so far as we know. Every

human being begins where his father did--and so does everything else

on the earth; though human invention has recently made it possible for

certain plants to be improved. No new invention ever dies as a man

does, even if the material parts or immaterial parts that compose it

are destroyed. On the contrary, it lives, in the sense that it exists

as a definite usable entity, and also in the sense that it continues to

propagate. And the things that it propagates do not begin as helpless

and useless babies, but as mature creations. The first completed gun is

still the model for the guns that men make now, and will continue to be

the model for all guns in the future. The man who made the first gun

has been succeeded by other men, as the first gun has been succeeded by

other guns; but the human successors have been no improvement on the

inventor of the first gun, while the guns that have succeeded the first

gun have been improvements on it to a degree that it is difficult--in

fact, impossible, to realize.

The relations of the gun to civilization are reciprocal, and are

therefore in accord with most of the other phenomena of our lives; for

just as the gun furthered the improvement of civilization, civilization

furthered the improvement of the gun. Nearly every step taken in the

physical sciences, and afterward in engineering and general mechanics,

has had a direct effect in improving the gun. The gun began as an

exceedingly rough, awkward and crude appliance; the gun today is one

of the most highly specialized and perfect appliances that the world

possesses.

But it is not only the gun itself that has been improved; the powder

has also been improved, and to a degree almost equal, if not quite.

When we realize that modern gunnery is so exact that if a gun is fired

in any direction and at any angle of elevation, the projectiles will

fall so close to a designated spot that all considerable variations

in the points of fall from that spot are usually attributed to other

causes than imperfection in the powder; and if we realize also that

a variation of one per cent. in the initial velocity imparted to a

projectile by its powder would result in a variation (practically

speaking) of one per cent. in the range attained, we then may realize

how perfectly understood the laws of the combustion of powder and the

development of powder gas have become, and how perfect are the methods

of manufacturing, storing and using it. Books upon books have been

written on the subject of making and using gunpowder; and as high a

grade of experimental ability has been employed as on the development

of any other art.

It is not quite clear whether stationary cannon or small guns carried

by soldiers were the first to be used; but the probability seems to be

that cannon were the first. It soon became desirable to devise and to

make appliances for holding the cannon in position, elevating them to

predetermined angles, and transporting them from place to place. To

accomplish these things, gun-carriages were invented. These appliances

have kept pace with guns and gunpowder in the march of improvement;

countless minor inventions have been made; countless experiments

have been conducted; countless books and articles have been written;

countless millions of money have been expended. That the field has

been large can readily be realized, when we remind ourselves of the

numberless situations that gun-carriages have had to be adapted to, on

the level plains of Central Europe, in the mountains, on the sands of

the desert,--in cold and heat and wet; and on the ocean also, in small

vessels and great battleships, to handle cannon great and small, on the

uneasy surface of the sea. But it will not be enough for us to realize

that it has been necessary to construct gun-carriages so ingeniously

that guns can be handled on them under all these circumstances; for we

will fall short of a realization of what must be attained, unless we

realize that the guns must be handled with safety, and (which is more

difficult of attainment) with precision and yet with quickness.

Now to bring the gun and its accessories to the high standard they have

now reached, the resources of virtually all the physical sciences have

been required and utilized; so that, while modern civilization was made

possible by the gun, and could not have been made possible without it,

the modern gun has been made possible by civilization, and could not

have been made possible without it.

This mutuality between civilization and the gun is evident in the

relations between civilization and every other great invention. It is

very clearly evident in the case of material mechanism; for it has been

plainly impossible for any material invention to exist without directly

and indirectly contributing to the improvement, and even to the birth,

of others. Any improvement in the process of making any metal or any

compound has always been of assistance to every mechanism using that

metal or that compound; and it seems impossible to name any mechanism

or process whose invention has not helped some other mechanism or

process. In the matter of the invention of immaterial things, the

effect may not be quite so obvious; and yet it is plain that most of

those inventions have contributed to the safety, intelligence and

stabilization of peoples, and therefore to a condition of mentality and

of tranquillity that permitted and often encouraged the improvement of

existing appliances, and the invention of new ones. Of one class of

immaterial invention, such as new books on the physical and engineering

sciences, the influence on material inventions is, of course, as

obvious as it is profound.

The boom of the gun may be said, by a not forced figure of speech, to

have ushered in the new civilization that rose from the mental lethargy

of the Middle Ages; for it was the first great invention of all in the

long line that have followed since. As it was the first, and because

without it the others would have been impossible, we can hardly avoid

the conclusion that it was the most important.

The mutual reactions between the gun and civilization have resulted,

and are still resulting, in widening the distance between the civilized

and the uncivilized, placing more and more power in the hands of the

civilized, and putting the uncivilized more and more into subjection

by the civilized. The process that began with the invention of the

fist-hammer, and was continued through the centuries by all the

improvements in weapons that followed, was brought to a halt when

Rome fell, and not revived until the gun came into general use in the

fourteenth century. During the interval of nearly nine hundred years,

civilization indeed went backward with the advance of the barbarians

into Europe, checked but not wholly stopped by Charles Martel at the

Battle of Tours in 732, and later by Charlemagne, his grandson, in

numerous campaigns. But the gun, being adopted and improved by peoples

having the mentality needed to discern its usefulness, stabilized the

conditions of living afterward by keeping in check the barbarians,

especially east of Europe. Its greatest single usefulness followed from

this by making possible the development and utilization of the next

great invention. This invention was next to the gun in point of time.

It was next to the gun in influence on history also; and some people

think it has had even more influence than the gun. This invention is

usually called the invention of printing.

Of course, printing had been invented centuries before, probably in

China, and had been practiced during all the intervening centuries,

in China, Egypt, Babylonia, Assyria, Greece, Rome, the Hellenistic

countries and Italy. But the printing had been done from blocks on

which were cut or carved many characters, that expressed whole words or

sentences. Naturally, printing done from them was not adaptable to the

recording of discussions, the making of connected narratives, or the

publishing of books.

Suddenly, about the year 1434, John Gutenberg, who lives at Mayence,

conceives the idea of cutting only one letter on each block, putting

the blocks in forms so arranged that the blocks can be put in such

sequence as may be desired for spelling words, and all the blocks

secured firmly in position. In other words, he invented movable type.

Objection may be made to this statement, and the declaration urged that

movable type were used in China before the Christian era. Possibly

they were; some declarations have been made to that effect. But

even if they were, we cannot see that their invention there had any

considerable influence on history. China was separated from western

Asia and from Africa and Europe by the long stretch of the dry lands

of Central Asia, across which little communication passed. It is

more nearly certain than most things are in ancient history, that

the civilized peoples of western Asia, Africa and Europe, including

Gutenberg himself, did not know of movable type until Gutenberg

invented them.

It is absolutely certain that virtually the whole of the influence

that printing by movable type has exercised on history sprang from the

invention of Gutenberg. It started almost immediately; and it increased

with a rapidity and a certainty that are amazing. No invention made

before, not even the gun, was seized upon with such avidity. The

world wanted it. The world seemed to have been waiting for it, though

unconsciously.

It may be well at this point to impress upon our minds the fact that

no invention has ever been recognized as an invention, unless it has

been put into a concrete form. The U. S. Patent Office, for instance,

will not award a patent for any invention unless it is described and

illustrated so clearly that "any one skilled in the art can make and

use it." It is an axiom that a man "cannot patent an idea." In many

countries a patentee is required to "work" his invention, to make

apparatus embodying it, and to put the apparatus to use. The underlying

idea of the patent laws of all countries is that the good of the public

is the end in view, and not the good of the inventor; that rewards

are held out to the inventor, merely to induce him to put devices of

practical value into the hands of the people. From this point of view,

which seems to be the correct one, the mere fact that a man conceives

of a device, even if he afterward develops his device to the degree

that he illustrates it and describes it to someone in such a way that a

person skilled in the art can make and use it, does not entitle him to

any reward. He must use "due diligence" in communicating full knowledge

of his invention to the public, through the Patent Office, ask for a

patent, and pay to the Government the prescribed fee.

Now, Gutenberg "worked" his invention so energetically that, with the

assistance of Faust, Schaeffer and others, an exceedingly efficient

system of printing books was in practical operation as early as 1455.

The types were of metal, and were cast from a matrix that had been

stamped out by a steel punch, and could therefore be so accurately

fashioned that the type had a beautiful sharpness and finish. In

addition, certain mechanical apparatus of a simple kind (printing

presses) were invented, whereby the type could be satisfactorily

handled, and impressions could be taken from them with accuracy and

quickness.

News of the invention spread so rapidly that before the year 1500

printing presses were at work in every country of Europe. The first

books printed were, of course, the works of the ancient authors,

beginning with three editions of Donatus. These were multiplied in

great numbers, and gave the first effective impulse to the spread of

civilization from the Græco-Oriental countries, where it had been

sleeping, to the hungry intellects of Europe.

The new birth of civilization (usually called the Renaissance) began

in Italy, where civilization had never quite died out, at some time

during the fourteenth century, and took the form at first of the

study of classical literature. This led naturally to a search for old

manuscripts; and so ardent did this search become that the libraries

of cathedrals and monasteries in all the civilized countries were

ransacked. Many new libraries were founded, especially in Italy, to

hold the old manuscripts that were discovered. A great impetus was

given to the movement by the exodus of scholars from Constantinople,

and their migration west to Italy, during the half century between the

year 1400 and the fall of Constantinople before the Ottoman Turks in

1453.

[Illustration: The Printing of Books]

Therefore, when the news of the invention of Gutenberg reached

the scholars of Italy and other lands, they seized upon it as an

undreamed-of blessing for bringing about that widespread study of

the classical authors which they had been struggling under so many

difficulties to accomplish.

To narrate and describe the progress made since then in the art of

printing would be to rewrite what has been written from time to time in

books and magazines and papers. To describe and point out the other

arts that have sprung directly from the art of printing, such as the

manufacture of printing presses and allied machinery, would require an

enormous book of a wholly technical nature; to describe and point out

the arts that have been made necessary, and the arts that have been

made possible, by the invention of printing would entail a history of

most of the industrial arts of the present day; while to mention and

adequately describe the measures that have resulted from the invention

of printing, and those made necessary and possible by it, would entail

a history of all the civilization that has come into being since

printing was invented.

The effects of the invention of printing are most of them so obvious

that it would be unnecessary to call attention to them. No other

one art seems to be so directly and clearly to be credited with the

progress of civilization. In the minds of many people, perhaps of most

people, printing is considered the most important invention ever made.

Maybe it is; but let us remind ourselves that the gun came before

the printing-press, and that the civilization contributed to by the

printing press would not have been possible without the gun. It may be

answered that, nevertheless, the printing press contributed more than

the gun; in the same way that a bank contributes more to the welfare of

a city than does the policeman who guards the bank.

Such an argument would have much to commend it, and it may be based

on the correct view of the situation. But to the author, the gun

seems to constitute the foundation of modern civilization, and the

printing press to be part of the structure built upon it; for the

fundamental enemy to civilization has always been the barbarian, be

he a savage under Attila or a Bolshevik in New York. It is true that

civilization may be considered as more important than the means that

makes it possible, but even this seems to be discussible; but that the

gun constitutes more distinctly the preservative influence of modern

civilization than any other one thing constitutes civilization itself

seems hardly to be discussible. The whole system of defense of all the

nations against foes outside and anarchy inside has rested on the gun

ever since it was invented; whereas, not even the printing press can

be said to be the only element, or even the main element, in modern

civilization.

This brief discussion is perhaps not very important; but it does not

wholly lack importance, for the reason that it brings into clear

relief the fact that we cannot reasonably discuss civilization without

realizing the dangers that confront it, and have always confronted

it, and will continue to confront it. _Civilization is an artificial

product_, that some people think has more evil in it than good for the

majority of mankind, and that certainly has been forced on mankind by a

very small minority. The foundation on which the force has rested for

four hundred years has been the gun.

But whatever the comparative amount of influence of the gun and the

printing press, there can be no doubt that they have worked together

hand in hand: that one guarded, and the other assisted, the first

tottering steps of the Renaissance movement, and that both have

continued to guard and assist the grand march that soon began, and that

is still advancing.

As the circumstances surrounding the invention of both the gun and the

art of printing are sufficiently well known to warrant the belief that

each was made, not by a king or any other man of high position, but by

a man relatively obscure, and that the surroundings and early life of

both were not those of courts or palaces, but those of a humble kind,

it may be well to note how enormous are the results that have flowed

from causes that seem to be very small. We have been told that "great

oaks from little acorns grow"; but the consequences that have grown

from the conception of the idea of printing are larger than any oak;

and an acorn is probably much larger than the part of the brain in

which an idea is conceived.

As a matter of interest, let us realize the strong resemblance between

the impression we receive from a material object actually seen by the

eye and the memory of that impression afterwards. Let us then realize

the strong resemblance between it and another impression of that same

object seen mentally but not physically; for instance, let us realize

the strong resemblance between the impression made on us by actually

seeing some friend and the impression received by _imagining_ him

receiving a letter which we are now writing to him. The first picture

was an image of the external object that was physically made on the

retina, as a picture or image is made by a camera on a screen; but that

picture on the retina must have been seen by the brain, or we would not

have known of it. The other pictures were not made physically on the

retina, so far as we know. Yet we all realize that we can make pictures

on our minds the more readily if we close our eyes. The fact of our

eyes being open seems to operate adversely to our receiving a clear

mental picture.

Now it is a matter of fact that an object (for instance, a pole) can

be seen by a person with normal eyesight, if it subtends an angle as

great as one minute; that a pole a foot thick can be seen clearly from

a distance of 3600 feet, at which distance it subtends that angle. The

rays of light pass through the crystalline lens of the eye and are

focussed on the retina, as they pass through the lens of the camera,

and are focussed on the sensitized paper. Assuming the distance from

the crystalline lens to the retina to be about three-quarters of an

inch, the pole would be represented on the retina by an image 3/(4 x

3600) or less than 1/4000 of an inch wide. During daylight our retinas

are continually receiving images of which all lines as wide as 1/4000

of an inch (and much narrower) are very clearly apprehended by the mind.

But very few of those images are noticed by us. It is only when some

incident calls them to our attention, or when the mind voluntarily

seizes on them, that any conscious impression is made upon the brain.

Similarly, images of physical objects unseen by the physical eye are

continually made on the mind: we are continually thinking of our

friends and of past incidents and possible future incidents; and our

thoughts of these things take the form of pictures. We see the man

with whom we had a conversation yesterday, and we see him with a

clearness that is proportional to the interest taken by the mind in the

conversation and the circumstances surrounding it. If our conversation

was uninteresting and the circumstances tame, we see him dimly. But if

our conversation was angry and the circumstances were exciting, we see

him and the surroundings very vividly--so vividly that our anger is

again aroused; perhaps to as high degree as on the day before, or even

higher.

This image-making is, of course, voluntary sometimes; but most images

come without volition on our part, and require no effort that we are

conscious of. To call up an image voluntarily requires conscious

effort; and to keep it in position while we gaze upon it requires

effort that is great in proportion to the time during which it is

exerted. Psychologists speak of this act of keeping an image in

position as one of giving attention, or paying attention.

To perform this act requires the exercise of will, unless the act gives

pleasure, or the image suggests danger; in each of these cases, of

course, the act is almost involuntary.

A man who is observant notes consciously the incidents that are passing

around him: he seizes on certain of the millions of pictures passing

before him, concentrates their images on his retina, and gazes on

each one for a while. Similarly, a man who is contemplative, seizes

on certain of the vague mental pictures passing through his mind,

concentrates his attention on them, and gazes at each one for a while.

We call the former an observant man and the other a thoughtful man.

Sometimes an observant man learns a great deal from what he sees, in

the same way that sometimes a studious man learns a great deal from

what he studies; but the learning of course cannot be accomplished

without the assistance of the memory. One is often surprised to see

how little some observant and studious men have remembered. Many

impressions have been received, but few retained.

The thoughtful man, of course, cannot in the nature of things receive

so many conscious impressions as the merely observant or studious man;

for the reason that he continually seizes on one and then another, and

holds each for a time, while he fixes his attention on it. Usually,

however, the thoughtful man memorizes his observations or his studies

for some specific purpose; he moves the various images about in his

mind; and arranges them in classes: for otherwise, the various images

would form merely an aggregation of apparently unrelated facts. The

value of such aggregations is, of course, enormous; they compose what

we call data, and include such things as tables of dates, etc.

But data, even tables of dates, have no value in themselves; it is only

from their relations to other things that they have value. There would

be no value, for instance, in knowing that William of Normandy invaded

England in 1066, unless we knew who William was, and what England

was, and what the effect of his invading it was. Now the thoughtful

man, like the man who arranges a card-catalogue in such a way that

it will be useful, not only notes isolated facts, but puts them into

juxtaposition with each other, and sees what their relations are.

The mental pictures that he finally fixes in his mind are of related

things, seen in their correct perspective. They are like the pictures

which are made on the mind of anyone by--say, a landscape: whereas the

mental pictures made by an unthoughtful man are such as little children

probably receive from nature; pictures in which the trees and hills and

valleys of a landscape do not appear as such, but merely as a great

aggregation of numberless separate images, confused and meaningless

like the colored pieces of a kaleidoscope.

To the thoughtful man, therefore, life seems not quite so meaningless

as to his neighbor; though even the most thoughtful can fix very few

complete and extensive pictures in his mind. If his thoughtfulness

takes him no further than simply forming pictures that enable him to

see things as they are, and in their correct relations to each other,

he becomes "a man of good judgment," a man valuable in any community,

especially for filling positions in which the ability to make correct

deductions is required.

Such a man, however, no matter how correctly he may estimate any

situation, no matter how clearly he may see all the factors in it,

no matter how accurately he may gauge their relative values and

positions, may be unable to suggest any way for utilizing its possible

benefits, or warding off its possible dangers. That is, he may lack

constructiveness. He is like a man who possesses any desirable thing or

dangerous thing, and who understands all there is to understand about

it, but _does not know what to do with it_. The various factors are in

his (mental) hands, but he can make nothing of them.

The constructive man can construct concrete entities out of what

are apparently wholly individual factors having no relation to each

other; he can, for instance, take two pieces of wood and a piece of

string, and make a weapon with which he can kill living animals at a

considerable distance. With neither the pieces of wood nor the string

could he do that; and he could not do it with all three, unless he were

able to construct them into a bow and arrow. That is, he could make the

weapon if he had ever seen it made before. If he were only constructive

and not inventive, he could not make it unless he had seen it done

before, or knew it had been done.

Men of purely constructive ability have not of themselves taken very

conspicuous parts on the stage of history; and yet the things that they

have constructed comprise nearly all that we can see and hear and touch

in the world of civilization. Thus history, while it is a narrative

of things that have been done, is not a narrative of all the things

that have been done, but only of the new and striking things. It is a

narrative of wars, of the rise and fall of nations, of the founding of

cities, of the establishment of religions and theories, of the writing

of books, of the invention of mechanisms, of the painting of pictures,

of the carving of statues; in general, of the creative work that man

has done.

The merely constructive man, unless he has been inventive also, has

never constructed anything of a really novel kind. It is a matter of

everyday experience that nearly all the things that are constructed

are according to former patterns and the lessons of experience. All

the constructive and engineering arts and sciences are studied and

practiced for the purpose of enabling men to build bridges and houses

and locomotives, etc., in such ways, as experience has shown to be

good. Nearly all our acts, nearly all our utterances, nearly all our

thoughts, are of stereotyped and conventional forms.

This condition of affairs possesses so many advantages that we cannot

even imagine any other to exist. It enables a man to act nearly

automatically in most of the situations of life. The main reason for

drilling a soldier is that when confronted with the conditions of

battle, he shall fire his musket and do his other acts automatically,

undisturbed by the danger and excitement. Similarly, all our experience

in life tends to automaticity. It is a very comfortable condition,

for it demands the minimum amount of mental and nervous energy. The

conductor demands your fare, and you pay it almost automatically.

That a condition of automaticity prevails in nature, as we see it,

one is tempted to suppose: for the seasons succeed each other with a

regularity suggestive of it.

But even if the machine of nature and the machine of civilization are

automatic now, we have no reason for believing that they always were

so. Even the most perfect automatic engine had to be started at some

time, and it had to be invented before it could be started; and it had

also to go through a long process of development. Similarly, a man

reads a paper almost automatically; but it required years of time to

develop his ability to do so.

Now it has happened from time to time in history that some invention

has broken in on the smoothly running machine of civilization and

introduced a change. The gun did this, and so did the printing press.

In every such case, a few men have welcomed the invention, but the

majority have resented the change: some of them because their interests

were threatened by it; others because of the instinctive but powerful

influence of dislike of change.

The purely constructive man does not cause any such jolt. His work

proceeds smoothly, uniformly, and usually with approval. But the

inventive man, "his eye in a fine frenzy rolling," is visited with some

vision which he cannot or will not dismiss, and which compels him to

try to embody it in some form, and to continue to try until he succeeds

in doing so, or gives up, confessing failure. The inventive man, having

seen the vision, becomes a constructive man, and (in case he succeeds)

_puts the vision which he sees into such form that other people can see

it also_.

It is obvious therefore that two kinds of ability are needed to produce

a really good invention of any kind, inventive ability and constructive

ability; and it is also obvious that they are separate, though they

cooperate. Many an invention of a quality that was mediocre or even

inferior in originality, novelty and scope, has been quite acceptable

by reason of the excellent constructive work that was done upon it:

many a book and many an essay has succeeded almost wholly because of

the skilful construction of the sentences; many a picture because of

the accuracy of the perspective and the mixing of the colors; many a

new mechanical device because of the excellent workmanship bestowed

upon it. Conversely, many a grand and beautiful conception has failed

of recognition because of the poor constructive work that was done on

it. But occasionally a Shakespeare has given to the world an enduring

masterpiece, the joint work of the highest order of invention and the

highest order of constructive skill; occasionally a Raphael has painted

a picture similarly conceived and executed; and occasionally an Edison

has given the world a mechanical invention, comparably wonderful and

perfect.

In all such cases, the start of the work was a picture on the mental

retina; an image of something that was not, but might be made to be.

A physical picture is actually made on the physical retina, but it

cannot be recognized by the owner of the retina, unless a healthy optic

nerve transmits it to his brain. Every mental picture must also be

transmitted to the brain; and some mental pictures are very bright and

clear. In some forms of insanity, the mental pictures are so clear that

the patient cannot be persuaded that they are not physical; the patient

sees a man approaching him, when there is no man approaching him; but

the impression made on the patient's mind is the same as if there were.

The thought of the enormousness of the consequences that have followed

the appearing of some visions to men (the vision of the gun, for

instance) is almost stunning, if we try to realize the small area of

the brain that the vision must have covered. If a line 1/4000 of an

inch wide made on the physical retina and afterwards transmitted to the

brain is seen with perfect clearness by the mind, what a small area of

the brain must have been covered by the original vision of the gun! Yet

how vast have been its consequences!

The fact that the inventor sees a vision, and then mentally arranges

and rearranges the various material elements available in order to

embody his vision in a painting, a project, a machine, a poem or a

sonata, indicates that the essential processes of invention are wholly

mental. This truth is illustrated by the work of every inventor, great

or small. Possibly, the most convincing illustration is that given by

the deaf Beethoven, who conceived and composed some of his grandest

works when he could not physically hear a note.

Reference to the work of Roger Bacon has not been made, because

of the doubts surrounding it.

Invention: The Master-key to Progress · 第 5 / 11 章