(3) There are certain safeguards that the community should erect. (a) Among these are the conventions that control intimacy between the sexes. On the one hand, the wholesome comradeship of boys and girls, above desiderated, must be encouraged, not only for the removal of that loneliness and morbid curiosity which are among the greatest of sex irritants, but in order that husband and wife may be wisely chosen. On the other hand, the attractiveness of the other sex may easily draw too much attention from the studies and sports that ought to make up the bulk of the activity of youth; and too great freedom of companionship leads to an unnecessary amount of temptation. The fearless, heart- free friendship of chaste youths and maidens is a priceless boon. But close lines must be drawn, and a certain amount of wise chaperonage is necessary. Too free a physical intimacy between the sexes leads almost irresistibly on, with many, to actual intercourse; the instinct is too imperious to be withstood when opportunity is too easy, if there are not many barriers to be broken first. (b) Another duty of the community lies in the fight against the public sources of sensual appeal not merely the houses of prostitution and street solicitation, but the vile shows, indecent pictures and books, and other means by which the greed of money panders to the sex instinct. The questions concerning the drama, the ballet, and the nude in art will recur when we come to discuss the general relations of art and morality. Closely parallel are the problems concerning the costume of women; these are phases of the eternal conflict between beauty and morality. What is pretty is tempting. How can we have enjoyment without being wrecked by it; how can we make life rich and yet keep it pure? Some line must be drawn; just where, we have not space to discuss.