The mental attitude of the people of the metropolis to one another may be designated formally as one of reserve. If the unceasing external contact of numbers of persons in the city should be met by the same number of inner reactions as in the small town, in which one knows almost every person he meets and to each of whom he has a positive relationship, one would be completely atomized internally and would fall into an unthinkable mental condition. Partly this psychological circumstance and partly the privilege of suspicion which we have in the face of the elements of metropolitan life (which are constantly touching one another in fleeting contact) necessitates in us that reserve, in consequence of which we do not know by sight neighbours of years standing and which permits us to appear to small-town folk so often as cold and uncongenial. Indeed, if I am not mistaken, the inner side of this external reserve is not only indifference but more frequently than we believe, it is a slight aversion, a mutual strangeness and repulsion which, in a close contact which has arisen any way whatever, can break out into hatred and conflict. The entire inner organization of such a type of extended commercial life rests on an extremely varied structure of sympathies, indifferences and aversions of the briefest as well as of the most enduring sort. This sphere of indifference is, for this reason, not as great as it seems superficially. Our minds respond, with some definite feeling, to almost every impression emanating from another person. The unconsciousness, the transitoriness and the shift of these feelings seem to raise them only into indifference. Actually this latter would be as unnatural to us as immersion into a chaos of unwished-for suggestions would be unbearable. From these two typical dangers of metropolitan life we are saved by antipathy which is the latent adumbration of actual antagonism since it brings about the sort of distantiation and deflection without which this type of life could not be carried on at all. Its extent and its mixture, the rhythm of its emergence and disappearance, the forms in which it is adequate — these constitute, with the simplified motives (in the narrower sense) an inseparable totality of the form of metropolitan life. What appears here directly as dissociation is in reality only one of the elementary forms of socialization.