The experimental demonstration that so-called mental fatigue is largely physical in its conditions has thus a dual significance. It indicates how arduous and persistent mental endeavor may be and how wide are the possibilities of intellectual accomplishment. It is an important fact for human life that the brain is possibly the most tireless part of the human machine. What seems to be mental fatigue can be materially reduced if the physical conditions under which studying, writing, and all other kinds of mental work are performed are carefully regulated. Another large part of what passes for mental fatigue will be removed if the individual becomes trained to a reflective appreciation of the end of his work. A habit of alert and conscious attention, if it is really habitual, will enable one to persist at work in the face of tempting distractions. Learning to "tend to business" by an intelligent application to the aims of the work to be done, will be a healthy antidote against that yielding to every dissuading impulse which so often passes for mental weariness.
CHAPTER V
THE SOCIAL NATURE OF MAN
Man as a social being. Man has long been defined as the "social animal," and it is certainly characteristic of human activity that it takes place largely with reference to other people. Many of man's native tendencies, such as those of sex, self-assertiveness, and the like, require the presence and contact of other people for their operation. Nineteenth-century philosophers attempted frequently to explain how individuals who were natively self-seeking ever came to act socially. The solution to this problem was usually found in the fact that precisely those self-seeking and self-preservation instincts which governed man's activity could not find satisfaction except through coöperation with a group. All man's social activity was conceived as purely instrumental to the gratification of his own egoistic desires. Man got on with his fellows simply because he could not get on without them. We shall see that, in the light of the specific and natural tendencies toward social behavior which are part of man's original equipment, this sharp psychological isolation between the individual and the group is an altogether unwarranted assumption. For it is just as native to man to act socially as it is for him to be hungry, or curious, or afraid. The element of truth in the nineteenth-century exaggeration of man's individuality lies in the fact that social activity is partly brought about in the satisfaction of the more egoistic impulses of the individual. "The fear motive drives men together in times of insecurity; the pugnacity motive bands them together for group combat; the economic motive brings industrial coöperation and organization; the self-assertive and submissive tendencies bring emulation as well as obedience; the expansion of the self to cover one's family, one's clique, one's class, one's country contributes to loyalty; while the parental instinct, expanding its scope to cover others besides children who are helpless, leads to self-sacrifice and altruism."[1]
[Footnote 1: R. S. Woodworth: Dynamic Psychology, p. 204.]
The fact is, however, that while social activity is promoted because individuals find in coöperation the possibility of the satisfaction of their egoistic desires, social activity is primarily brought about through the specifically social tendencies which are part of our native equipment. It is with these natural bases of social activity that we shall in this chapter be particularly concerned. We shall have to take note, in the first place, of a native tendency to be with other people, to feel an unlearned sense of comfort in their presence, and uneasiness if too much separated from them, physically, or in action, feeling, or thought. Human beings tend, furthermore, to reproduce sympathetically the emotions of others, especially those of their own social and economic groups. Thirdly, man's conduct is natively social in that he is by nature specifically sensitive to praise and blame, that he will modify his conduct so as to secure the one and avoid the other. Finally, besides the specific tendencies to respond to the presence, the feelings, the actions, and the thoughts of others, man displays a "capacity for social behavior." And, as is the case with all native capacities, man has, therefore, a native interest in group or social activity for its own sake.
The predominantly social character of human behavior has thus a twofold explanation. It is based, in the first place, on the group of native tendencies of a social character to which we have already referred. It is based, secondly, on the necessity for group activity and coöperation which the individual experiences in the satisfaction of his egoistic impulses and desires. Man, because of his original tendencies, wants to live, act, think, and feel with others; for the satisfaction of his nonsocial impulses he must live with others. And in civilized society human action from almost earliest childhood is in, and with reference to, a group. Human behavior is thus seen to be that of an essentially social nature acting in an essentially social environment. And, as in the case of other instinctive and habitual activities, human beings experience in social activity an immediate satisfaction apart from any satisfactions toward which it may be the instrument.
Gregariousness. The "herd instinct" is manifested by many animals very low in the scale of animal development. McDougall quotes in this connection Francis Galton's classical account of this instinct in its crudest form: "Describing the South African ox in Damaraland, he says he displays no affection for his fellows, and hardly seems to notice their existence, so long as he is among them; but, if he becomes separated from the herd, he displays an extreme distress that will not let him rest until he succeeds in rejoining it, when he hastens to bury himself in the midst of it, seeking the closest possible contact with the bodies of his fellows."[1]
[Footnote 1: McDougall: Social Psychology, p. 84.]
This original tendency exhibits itself among human beings in a variety of ways. The tendency of human beings to herd together, for which there is evidence in the earliest history of the race, may be observed on any crowded thoroughfare, or in any amusement park, or city. That group life has expanded partly through practical necessity, is, of course, true, but groups of humans tend to become, as in our monster cities, larger than they need be, or can be for economic efficiency.