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.
The fascination of city life has not infrequently been set down to the multiplicity of opportunities offered in the way of companions, amusements, and occupations after one's own taste. But the fascination has clearly a more instinctive basis, the desire to be with other people. Many a man, as has been pointed out, lives in a large city as unsociable and secluded a life as if he were surrounded by miles of mountain or prairie, who yet could not be happy elsewhere. Any one who has failed to be amused by a really good comedy when the theater was comparatively empty, or in the presence of thousands of others hugely enjoyed a second-rate baseball game, or gone down to the crowded shopping district to get what he could have purchased on a side-street uptown, can appreciate how instinctive is this undiscriminating desire for companionship.