Again, the same instinct to herd with his fellows that makes a man intensely loyal to his own group may operate to make him indifferent to the difficulties or jealous and suspicious of the aims of others Gregariousness is the basis not only of patriotism, but of chauvinism, not only of civic pride, but of provincialism. The narrowness and parochialism of group attachments is most pronounced where groups and communities are rigidly set off one from another. In such circumstances community of feeling and understanding is largely reduced. This may be seen even under contemporary conditions in the comparatively complete inability of different professional, social, and economic groups within the same society to understand each other, and the proverbial ignorance and carelessness of one half of the population as to "how the other half lives." Narrowness of group feeling tends to grow less pronounced under the mobile conditions of modern industry, communication, and education. Trade relations knit the farthest parts of the globe together; this morning's newspaper puts us in touch with the whole of mankind. We have outgrown the days when every stranger was an enemy. But though the barriers between nations are tending to break down, within nations individuals tend, as they grow older, to experience an insulated devotion to their own set or social group, a callous oblivion to the needs and desires of that great majority of mankind with whom they have a less keen sense of "consciousness of kind."
Gregariousness in belief. Man's gregarious character, as already pointed out, is manifested not only in his desire to be physically with his fellows, but to be at one with them in their actions, feelings, and thoughts. Beliefs once established tend to remain established if for no other reason than that they are believed in by the majority. That an opinion gains prestige merely because we know other people believe it, is frequently illustrated by the facility with which rumor travels. At the end of the Great War, it will be recalled, the false news of the armistice report flew from mouth to mouth and was accepted with the most amazing credulity simply because "everybody said so." The spread of superstitions and old wives' tales and their long lingering in the minds even of intelligent people is testimony that men tend mentally as well as physically to herd together.
The tendency to find comfort in the presence of one's fellows and uneasiness if too much separated from them, is as pronounced in the sphere of moral and intellectual relations as it is in the case of merely physical proximity. We like to be one of a crowd in our opinions and beliefs, as well as in our persons. There is hardly anything more painful than the sense of being utterly alone in one's opinions. Even the extreme dissenter from the accustomed ways of thinking and feeling of the majority is associated with or pictures some little group which agrees with him. And, if we cannot find contemporaries to share our extreme opinions, we at least imagine some ideal group now or in posterity to share it with us.
Gregariousness in habits of action. But if men tend to think in groups they tend more emphatically still to act in groups, to be acutely uncomfortable when acting in a fashion different from that customary among the majority of their fellows. Habits of action are more deep-seated physiologically than habits of thought (which is one reason why our theories are so often in advance of our practice). People will accede intellectually to new ideas which they would not and could not practice, the mind being, as it were, more convertible than the emotions. Even in minor matters, in dress, speech, and manners, we like to do the accustomed thing. It is more painful for most people to use the wrong fork at dinner, or to be dressed in a business suit where everyone else is in evening clothes, than to commit a fallacy, or to act upon prejudices rather than upon logical conclusions.
The individual's instinctive desire to be identical in action with other members of his group, from the collars and clothes he wears to the way he brings up his children, is greatly reinforced by the punishment meted out to those who differ from the majority. This may vary from ridicule, as in the case of the laughter that greets the poet's proverbial long hair and flowing tie, the foreigner's accent, or a straw hat in April, to the confinement and privation that are the penalties for any marked infringement of the accepted modes of life. Even when the punishments are slight, they are effective. A man who has no moral or religious scruples with reference to gambling on any day of the week will, to avoid the social ostracism of his neighbors, refrain from playing cards on his front porch on Sunday. For no other reason than to avoid being consciously different, many a man will not wear cool white clothes on a hot day in his office who will wear them on a cool evening at the seashore.
The effect of gregariousness on innovation. A strong instinctive tendency to community of action and thought is in large part responsible for the comparative absence of innovation in either of these fields. A premium is put upon the conventional, the customary, the common, both in the instinctive satisfaction they give the individual, and in the high value set upon them by society. In advanced societies, however, the habit of inquiry and originality may itself come to be endorsed by the majority, as it is among scientists and artists. The herd instinct need not always act on the side of unreason. Among the intellectual classes, it is already enlisted on the side of free inquiry, which among scholars is the fundamental common habit.
If rationality were once to become really respectable, if we feared the entertaining of an unverifiable opinion with the warmth with which we fear using the wrong implement at the dinner table, if the thought of holding a prejudice disgusted us as does a foul disease, then the dangers of man's suggestibility would be turned into advantages.[1]
[Footnote 1: Trotter; loc. cit., p. 45.]
Sympathy (a specialization of gregariousness). Sympathy, in the strict psychological sense of the term, means a "suffering with, the experiencing of any feeling or emotion when and because we observe in other persons or creatures the expression of that feeling of emotion."[2] The behavior of animals exhibits the external features of sympathetic action very clearly. "Two dogs begin to growl or fight, and at once all the dogs within sound and sight stiffen themselves, and show every symptom of anger. Or one beast in a herd stands arrested, gazing in curiosity on some unfamiliar object, and presently his fellows also, to whom the object may be invisible, display curiosity and come up to join in the examination of the object."[1]
[Footnote 2: McDougall: loc. cit., p. 92.]