First of all, he had gotten hold of a large idea, which he could not by any possibility understand in all its bearings; and on the basis of this he criticises the charitable efforts of his mother and, indeed, of her whole generation. Not only does he criticise the prevailing, modes of philanthropic effort, but he condemns these good people as having "petty" minds--because they do not all see what he has seen, perhaps for as long as a day or two. His attitude is not reasoned out, but arises from the deepest feelings of sympathy for the great tragedy of poverty, which he takes in at one sweep without patience for the details of individual poor people. Then the preacher on the street corner, exposing himself to the gibes and sneers of the unsympathetic crowd, appeals to him instantly as a self-sacrificing champion of some "cause." It is his religious feelings, his chivalric feelings, that are reached; he would himself become a missionary, and the missionary is a hero that appeals especially to the adolescent. There is no inconsistency between his disapproval of specific acts of charity and his approval of the preacher of an unknown cause. In both instances he gives voice to his feelings for the larger, comprehensive ideals that are just surging to the surface of his consciousness. This is the period in which you will one day complain that the young person is giving altogether too much time and thought to details of dress and fashion, only to remonstrate a few days later about his careless or even slovenly appearance. On the whole, however, the interest in dress and appearance will grow, because as the adolescent boy or girl becomes conscious of his own personality he thinks more and more of the appearance of his person, and especially of how it appears to others. There is even the danger that the boy will become a fop or a dandy, and that the girl will take to overdressing. Argument is of little avail in such cases. The association with persons of good taste who will arouse the admiration or affection of the growing child will do more than hours of sermons. If the boy can realize that one may be a fine man without wearing the latest style in collars, or if the girl finds a thoroughly admirable and lovable woman who does not observe the customs of fashion too much, neither ridicule nor protest will be necessary. In general, the adolescent will give us exercise in patience and in imagination and in ingenuity. He will puzzle us and perplex us as well as exasperate us. But if we cannot remember back to our own golden age, we must try as best we can to believe that even this will pass away. XIV. HEREDITY AND ENVIRONMENT With special assistance from BENJAMIN CHARLES GRUENBERG, Ph.D.