but not knowing one another. The effect of this is to substitute fortuitous and casual relationship for the more intimate and permanent associations of the smaller community.
Under these circumstances the individual's status is determined to a considerable degree by conventional signs—by fashion and "front"—and the art of life is largely reduced to skating on thin surfaces and a scrupulous study of style and manners.
Not only transportation and communication, but the segregation of the urban population tends to facilitate the mobility of the individual man. The processes of segregation establish moral distances which make the city a mosaic of little worlds which touch but do not interpenetrate. This makes it possible for individuals to pass quickly and easily from one moral milieu to another and encourages the fascinating but dangerous experiment of living at the same time in several different contiguous, perhaps, but widely separated worlds. All this tends to give to city life a superficial and adventitious character; it tends to complicate social relationships and to produce new and divergent individual types. It introduces, at the same time, an element of chance and adventure, which adds to the stimulus of city life and gives it for young and fresh nerves a peculiar attractiveness. The lure of great cities is perhaps a consequence of stimulations which act directly upon the reflexes. As a type of human behavior it may be explained, like the attraction of the flame for the moth, as a sort of tropism.
The attraction of the metropolis is due in part, however, to the fact that in the long run every individual finds somewhere among the varied manifestations of city life the sort of environment in which he expands and feels at ease; finds, in short, the moral climate in which his peculiar nature obtains the stimulations that bring his innate qualities to full and free expression. It is, I suspect, motives of this kind which have their basis, not in interest nor even in sentiment, but in something more fundamental and primitive which draw many, if not most, of the young men and young women from the security of their homes in the country into the big, booming confusion and excitement of city life. In a small community it is the normal man, the man without eccentricity or genius, who seems most likely to succeed. The small community