The Story of the Mind.

by James Mark Baldwin.

PREFACE.

In this little book I have endeavoured to maintain the simplicity which is the ideal of this series. It is more difficult, however, to be simple in a topic which, even in its ill.u.s.trations, demands of the reader more or less facility in the exploration of his own mind. I am persuaded that the attempt to make the matter of psychology more elementary than is here done, would only result in making it untrue and so in defeating its own object.

In preparing the book I have secured the right and welcomed the opportunity to include certain more popular pa.s.sages from earlier books and articles. It is necessary to say this, for some people are loath to see a man repeat himself. When one has once said a thing, however, about as well as he can say it, there is no good reason that he should be forced into the pretence of saying something different simply to avoid using the same form of words a second time. The question, of course, is as to whether he should not then resign himself to keeping still, and letting others do the further speaking.

There is much to be said for such a course. But if one have the right to print more severe and difficult things, and think he really has something to say which would instruct the larger audience, it would seem only fair to allow him to speak in the simpler way also, even though all that he says may not have the merit of escaping the charge of infringing his own copyrights!

I am indebted to the proprietors of the following magazines for the use of such pa.s.sages: The Popular Science Monthly, The Century Magazine, The Inland Educator; and with them I also wish to thank The Macmillan Company and the owners of Appletons' Universal Cyclopaedia.

As to the scope and contents of the Story, I have aimed to include enough statement of methods and results in each of the great departments of psychological research to give the reader an intelligent idea of what is being done, and to whet his appet.i.te for more detailed information. In the choice of materials I have relied frankly on my own experience and in debatable matters given my own opinions. This gives greater reality to the several topics, besides making it possible, by this general statement, at once to acknowledge it, and also to avoid discussion and citation of authorities in the text. At the same time, in the exposition of general principles I have endeavoured to keep well within the accepted truth and terminology of psychology.

It will be remarked that in several pa.s.sages the evolution theory is adopted in its application to the mind. While this great theory can not be discussed in these pages, yet I may say that, in my opinion, the evidence in favour of it is about the same, and about as strong, as in biology, where it is now made a presupposition of scientific explanation. So far from being unwelcome, I find it in psychology no less than in biology a great gain, both from the point of view of scientific knowledge and from that of philosophical theory. Every great law that is added to our store adds also to our conviction that the universe is run through with Mind. Even so-called Chance, which used to be the "bogie" behind Natural Selection, has now been found to ill.u.s.trate--in the law of Probabilities--the absence of Chance. As Professor Pearson has said: "We recognise that our conception of Chance is now utterly different from that of yore.... What we are to understand by a chance distribution is one in accordance with law, and one the nature of which can, for all practical purposes, be closely predicted." If the universe be pregnant with purpose, as we all wish to believe, why should not this purpose work itself out by an evolution process under law?--and if under law, why not the law of Probabilities? We who have our lives insured provide for our children through our knowledge and use of this law; and our plans for their welfare, in most of the affairs of life, are based upon the recognition of it. Who will deny to the Great Purpose a similar resource in producing the universe and in providing for us all?

I add in a concluding section on Literature some references to various books in English, cla.s.sified under the headings of the chapters of the text. These works will further enlighten the reader, and, if he persevere, possibly make a psychologist of him.

J. MARK BALDWIN.

PRINCETON, _April, 1898_.

THE STORY OF THE MIND

CHAPTER I.

THE SCIENCE OF THE MIND--PSYCHOLOGY,

Psychology is the science of the mind. It aims to find out all about the mind--the whole story--just as the other sciences aim to find out all about the subjects of which they treat--astronomy, of the stars; geology, of the earth; physiology, of the body. And when we wish to trace out the story of the mind, as psychology has done it, we find that there are certain general truths with which we should first acquaint ourselves; truths which the science has been a very long time finding out, but which we can now realize without a great deal of explanation. These general truths, we may say, are preliminary to the story itself; they deal rather with the need of defining, first of all, the subject or topic of which the story is to be told.

1. The first such truth is that the mind is not the possession of man alone. Other creatures have minds. Psychology no longer confines itself, as it formerly did, to the human soul, denying to the animals a place in this highest of all the sciences. It finds itself unable to require any test or evidence of the presence of mind which the animals do not meet, nor does it find any place at which the story of the mind can begin higher up than the very beginnings of life. For as soon as we ask, "How much mind is necessary to start with?" we have to answer, "Any mind at all"; and all the animals are possessed of some of the actions which we a.s.sociate with mind. Of course, the ascertainment of the truth of this belongs--as the ascertainment of all the truths of nature belongs--to scientific investigation itself. It is the scientific man's rule not to a.s.sume anything except as he finds facts to support the a.s.sumption. So we find a great department of psychology devoted to just this question--i.e., of tracing mind in the animals and in the child, and noting the stages of what is called its "evolution" in the ascending scale of animal life, and its "development" in the rapid growth which every child goes through in the nursery. This gives us two chapters of the story of the mind.

Together they are called "Genetic Psychology," having two divisions, "Animal or Comparative Psychology" and "Child Psychology."

2. Another general truth to note at the outset is this: that we are able to get real knowledge about the mind. This may seem at first sight a useless question to raise, seeing that our minds are, in the thought of many, about the only things we are really sure of. But that sort of sureness is not what science seeks. Every science requires some means of investigation, some method of procedure, which is more exact than the mere say-so of common sense; and which can be used over and again by different investigators and under different conditions.

This gives a high degree of verification and control to the results once obtained. The chemist has his acids, and reagents, and blowpipes, etc.; they const.i.tute his instruments, and by using them, under certain constant rules, he keeps to a consistent method. So with the physiologist; he has his microscope, his staining fluids, his means of stimulating the tissues of the body, etc. The physicist also makes much of his lenses, and membranes, and electrical batteries, and X-ray apparatus. In like manner it is necessary that the psychologist should have a recognised way of investigating the mind, which he can lay before anybody saying: "There, you see my results, you can get them for yourself by the same method that I used."

In fulfilling this requirement the psychologist resorts to two methods of procedure. He is able to investigate the mind in two ways, which are of such general application that anybody of sufficient training to make scientific observations at all can repeat them and so confirm the results. One of these is what is called Introspection. It consists in taking note of one's own mind, as all sorts of changes are produced in it, such as emotions, memories, a.s.sociations of events now gone, etc., and describing everything that takes place. Other persons can repeat the observations with their own minds, and see that what the first reports is true. This results in a body of knowledge which is put together and called "Introspective Psychology," and one chapter of the story should be devoted to that.

Then the other way we have is that of experimenting on some one else's mind. We can act on our friends and neighbours in various ways, making them feel, think, accept, refuse this and that, and then observe how they act. The differences in their action will show the differences in the feelings, etc., which we have produced. In pursuing this method the psychologist takes a person--called the "subject" or the "re-agent"--into his laboratory, asks him to be willing to follow certain directions carefully, such as holding an electric handle, blowing into a tube, pushing a b.u.t.ton, etc., when he feels, sees, or hears certain things; this done with sufficient care, the results are found recorded in certain ways which the psychologist has arranged beforehand. This second way of proceeding gives results which are gathered under the two headings "Experimental" and "Physiological Psychology." They should also have chapters in our story.

3. There is besides another truth which the psychologist nowadays finds very fruitful for his knowledge of the mind; this is the fact that minds vary much in different individuals, or cla.s.ses of individuals. First, there is the p.r.o.nounced difference between healthy minds and diseased minds. The differences are so great that we have to pursue practically different methods of treating the diseased, not only as a cla.s.s apart from the well minds--putting such diseased persons into inst.i.tutions--but also as differing from one another.

Just as the different forms of bodily disease teach us a great deal about the body--its degree of strength, its forms of organization and function, its limitations, its heredity, the inter-connection of its parts, etc.--so mental diseases teach us much about the normal mind.

This gives another sphere of information which const.i.tutes "Abnormal Psychology" or "Mental Pathology."

[Ill.u.s.tration: PLATE I.]

[Ill.u.s.tration: PLATE II.]

There are also very striking variations between individuals even within normal life; well people are very different from one another.

All that is commonly meant by character or temperament as distinguishing one person from another is evidence of these differences. But really to know all about mind we should see what its variations are, and endeavour to find out why the variations exist.

This gives, then, another topic, "Individual or Variational Psychology." This subject should also have notice in the story.

4. Allied with this the demand is made upon the psychologist that he show to the teacher how to train the mind; how to secure its development in the individual most healthfully and productively, and with it all in a way to allow the variations of endowment which individuals show each to bear its ripest fruit. This is "Educational or Pedagogical Psychology."

5. Besides all these great undertakings of the psychologist, there is another department of fact which he must some time find very fruitful, although as yet he has not been able to investigate it thoroughly: he should ask about the place of the mind in the world at large. If we seek to know what the mind has done in the world, what a wealth of story comes to us from the very beginnings of history! Mind has done all that has been done: it has built human inst.i.tutions, indited literature, made science, discovered the laws of Nature, used the forces of the material world, embodied itself in all the monuments which stand to testify to the presence of man. What could tell us more of what mind is than this record of what mind has done? The ethnologists are patiently tracing the records left by early man in his utensils, weapons, clothing, religious rites, architectural remains, etc., and the anthropologists are seeking to distinguish the general and essential from the accidental and temporary in all the history of culture and civilization. They are making progress very slowly, and it is only here and there that principles are being discovered which reveal to the psychologist the necessary modes of action and development of the mind. All this comes under the head of "Race Psychology."

6. Finally, another department, the newest of all, investigates the action of minds when they are thrown together in crowds. The animals herd, the insects swarm, most creatures live in companies; they are gregarious, and man no less is social in his nature. So there is a psychology of herds, crowds, mobs, etc., all put under the heading of "Social Psychology." It asks the question, What new phases of the mind do we find when individuals unite in common action?--or, on the other hand, when they are artificially separated?

We now have with all this a fairly complete idea of what The Story of the Mind should include, when it is all told. Many men are spending their lives each at one or two of these great questions. But it is only as the results are all brought together in a consistent view of that wonderful thing, the mind, that we may hope to find out all that it is. We must think of it as a growing, developing thing, showing its stages of evolution in the ascending animal scale, and also in the unfolding of the child; as revealing its nature in every change of our daily lives which we experience and tell to one another or find ourselves unable to tell; as allowing itself to be discovered in the laboratory, and as willing to leave the marks of its activity on the scientist's blackened drum and the dial of the chronoscope; as subject to the limitations of health and disease, needing to be handled with all the resources of the asylum, the reformatory, the jail, as well as with the delicacy needed to rear the sensitive girl or to win the love of the bashful maid; as manifesting itself in the development of humanity from the first rude contrivances for the use of fire, the first organizations for defence, and the first inscriptions of picture writing, up to the modern inventions in electricity, the complex const.i.tutions of government, and the cla.s.sic productions of literary art; and as revealing its possibilities finally in the brutal acts of the mob, the crimes of a lynching party, and the deeds of collective righteousness performed by our humane and religious societies.

It would be impossible, of course, within the limits of this little volume, to give even the main results in so many great chapters of this ambitious and growing science. I shall not attempt that; but the rather select from the various departments certain outstanding results and principles. From these as elevations the reader may see the mountains on the horizon, so to speak, which at his leisure, and with better guides, he may explore. The choice of materials from so rich a store has depended also, as the preface states, on the writer's individual judgment, and it is quite probable that no one will find the matters altogether wisely chosen. All the great departments now thus briefly described, however, are represented in the following chapters.

CHAPTER II.

WHAT OUR MINDS HAVE IN COMMON--INTROSPECTIVE PSYCHOLOGY.

Of all the sources now indicated from which the psychologist may draw, that of so-called Introspective Psychology--the actual reports of what we find going on in our minds from time to time--is the most important. This is true for two great reasons, which make Psychology different from all the other sciences. The first claim which the introspective method has upon us arises from the fact that it is only by it that we can examine the mind directly, and get its events in their purity. Each of us knows himself better than he knows any one else. So this department, in which we deal each with his own consciousness at first hand, is more reliable, if free from error, than any of those spheres in which we examine other persons, so long as we are dealing with the psychology of the individual. The second reason that this method of procedure is most important is found in the fact that all the other departments of psychology--and with them all the other sciences--have to use introspection, after all, to make sure of the results which they get by other methods. For example, the natural scientist, the botanist, let us say, and the physical scientist, the electrician, say, can not observe the plants or the electric sparks without really using his introspection upon what is before him. The light from the plant has to go into his brain and leave a certain effect in his mind, and then he has to use introspection to report what he sees. The astronomer who has bad eyes can not observe the stars well or discover the facts about them, because his introspection in reporting what he sees proceeds on the imperfect and distorted images coming in from his defective eyesight.

So a man given to exaggeration, who is not able to report truthfully what he remembers, can not be a good botanist, since this defect in introspection will render his observation of the plants unreliable.

In practice the introspective method has been most important, and the development of psychology has been up to very recently mainly due to its use. As a consequence, there are many general principles of mental action and many laws of mental growth already discovered which should in the first instance engage our attention. They const.i.tute the main framework of the building; and we should master them well before we go on to find the various applications which they have in the other departments of the subject.

The greater results of "Introspective" or, as it is very often called, "General" psychology may be summed up in a few leading principles, which sound more or less abstract and difficult, but which will have many concrete ill.u.s.trations in the subsequent chapters. The facts of experience, the actual events which we find taking place in our minds, fall naturally into certain great divisions. These are very easily distinguished from one another. The first distinction is covered by the popularly recognised difference between "thought and conduct," or "knowledge and life." On the one hand, the mind is looked at as receiving, taking in, learning; and on the other hand, as acting, willing, doing this or that. Another great distinction contrasts a third mental condition, "feeling," with both of the other two. We say a man has knowledge, but little feeling, head but no heart; or that he knows and feels the right but does not live up to it.

I. On the side of Reception we may first point out the avenues through which our experiences come to us: these are the senses--a great number, not simply the five special senses of which we were taught in our childhood. Besides Sight, Hearing, Taste, Smell, and Touch, we now know of certain others very definitely. There are Muscle sensations coming from the moving of our limbs, Organic sensations from the inner vital organs, Heat and Cold sensations which are no doubt distinct from each other, Pain sensations probably having their own physical apparatus, sensations from the Joints, sensations of Pressure, of Equilibrium of the body, and a host of peculiar sensational conditions which, for all we know, may be separate and distinct, or may arise from combinations of some of the others. Such, for example, are the sensations which are felt when a current of electricity is sent through the arm.

All these give the mind its material to work upon; and it gets no material in the first instance from any other source. All the things we know, all our opinions, knowledges, beliefs, are absolutely dependent at the start upon this supply of material from our senses; although, as we shall see, the mind gets a long way from its first subjection to this avalanche of sensations which come constantly pouring in upon it from the external world. Yet this is the essential and capital function of Sensation: to supply the material on which the mind does the work in its subsequent thought and action.

Next comes the process by which the mind holds its material for future use, the process of Memory; and with it the process by which it combines its material together in various useful forms, making up things and persons out of the material which has been received and remembered--called a.s.sociation of Ideas, Thinking, Reasoning, etc. All these processes used to be considered as separate "faculties" of the soul and as showing the mind doing different things. But that view is now completely given up. Psychology now treats the activity of the mind in a much more simple way. It says: Mind does only one thing; in all these so-called faculties we have the mind doing this one thing only on the different materials which come and go in it. This one thing is the combining, or holding together, of the elements which first come to it as sensations, so that it can act on a group of them as if they were only one and represented only one external thing. Let me ill.u.s.trate this single and peculiar sort of process as it goes on in the mind.

We may ask how the child apprehends an orange out there on the table before him. It can not be said that the orange goes into the child's mind by any one of its senses. By sight he gets only the colour and shape of the orange, by smell he gets only its odour, by taste its sweetness, and by touch its smoothness, rotundity, etc. Furthermore, by none of these senses does he find out the individuality of the orange, or distinguish it from other things which involve the same or similar sensations--say an apple. It is easy to see that after each of the senses has sent in its report something more is necessary: the combining of them all together in the same place and at the same time, the bringing up of an appropriate name, and with that a sort of relating or distinguishing of this group of sensations from those of the apple. Only then can we say that the knowledge, "here is an orange," has been reached. Now this is the _one typical way the mind has of acting_, this combining of all the items or groups of items into ever larger and more fruitful combinations. This is called Apperception. The mind, we say, "apperceives" the orange when it is able to treat all the separate sensations together as standing for one thing. And the various circ.u.mstances under which the mind does this give the occasions for the different names which the earlier psychology used for marking off different "faculties."

These names are still convenient, however, and it may serve to make the subject clear, as well as to inform the reader of the meaning of these terms, to show how they all refer to this one kind of mental action.

The case of the orange ill.u.s.trates what is usually called Perception.

It is the case in which the result is the knowledge of an actual object in the outside world. When the same process goes on after the actual object has been removed it is Memory. When it goes on again in a way which is not controlled by reference to such an outside object--usually it is a little fantastic, as in dreams or fancy, but often it is useful as being so well done as to antic.i.p.ate what is really true in the outside world--then it is Imagination. If it is actually untrue, but still believed in, we call it Illusion or Hallucination. When it uses mere symbols, such as words, gestures, writing, etc., to stand for whole groups of things, it is Thinking or Reasoning. So we may say that what the mind arrives at through this its one great way of acting, no matter which of these forms it takes on, except in the cases in which it is not true in its results to the realities, is Knowledge.

Thus we see that the terms and faculties of the older psychology can be arranged under this doctrine of Apperception without the necessity of thinking of the mind as doing more than the one thing. It simply groups and combines its material in different ways and in ever higher degrees of complexity.