"Never has there been a close study of how necessary to a man are the experiences which we clumsily call aesthetic. Such experiences are associated with works of art for only an insignificant number of individuals. The majority find pleasure of an aesthetic nature in the mere fact of their existence within the stream of life. In the cities, the eye meets colorful store displays, the diversity of human types. Looking at passers-by, one can guess from their faces the story of their lives. This movement of the imagination when a man is walking through a crowd has an erotic tinge; his emotions are very close to physiological sensations."