The young man has further to learn that every union of bodies without the harmony of the souls is humiliating and immoral. That does not mean that the idea should be imparted to our youth that the sexual impulse is something low and bestial, as some moralists would like us to believe. On the contrary, we must teach our youth that a healthy and natural exercise of the human organism is a precious blessing that must not be squandered and recklessly defiled. We must teach the young man that for the future offspring’s sake the monogamic marriage is the only one which the ideal man will resort to. Until his mate is found he will have to control his sensual desires. The control of sensuality develops the deeper feelings of love. Bought love kills the finest instruments of mental activity. Promiscuity destroys the relations of the young companionship. Free love leaves all the best human qualities undeveloped. To form the healthy germ of society, marriage must be unitary and permanent. The individual love assists the elevation of the race. Monogamy was victorious from the experience of its advantages. It exists for the sake of the race. The race-enhancing form of union is a permanent monogamy. From the physiological standpoint monogamic marriage is a natural and healthful institution. It affords a free outlet to sensuality without generally exhausting it by the unceasing excitement in the presence of new objects. Novelty is the chief stimulus to the sexual feeling and is the main cause of overindulgence and its sequels. In centralizing affection upon one person, marriage furnishes the greatest scope of its development and expansion. Marriage favors the development of a great number of faculties which otherwise would be in danger of being abused. Marriage contributes to the general morality of mankind by the regularity which it brings to all the actions of life, by the calmness which it spreads over human existence, and by the harmony which it introduces into the functional exercise of all our necessities. It creates in man a greater attachment to life in helping to overcome a great number of difficulties. Marriage, therefore, contributes to the progress of humanity, and man is by duty bound that the selection of a mate should contribute to the enhancement of the human race. Every individual acquires duties towards the race. The man or the woman who transgresses the path of strict monogamy has done a disservice to humanity. From the point of view of evolutionary ethics, men and women must make absolute chastity the rule of their lives. FOOTNOTES: [DG] In a treatise on the science of sex-attraction, such as this, the author is of the opinion, that the much-mooted question about the double standard of sexual morality of the two sexes ought to be thoroughly discussed.