In another lecture I have discussed the proposition that it would be better for all concerned if women could have scientific understanding of the physiological facts concerning the sexual tendencies of men, not to make women more lenient or forgiving towards the mistakes of men, but rather to enable women to play an important part in the necessary adjustments through helpful comradeship. This last phrase will mean nothing to many people, but in many a modern home a well-informed wife has been able to lead the way to the satisfactory solution of the fundamental problems of life. [Sidenote: Self-control in marriage.] There is another and an all-important phase of the problem of teaching self-control which is commonly overlooked by those who are trying to help young men solve their greatest problems. I have in mind the need of self-control in marriage. Most writers and lecturers who emphasize the arguments for absolute self-control or continence before marriage, omit all reference to marital life. The natural inference, and one widely followed, is that the only moral duty of a young man is to control his intense desires and avoid illicit relations until sexual abandon is permitted under the license of the law and the benediction of the church. Such, I submit, is a fair conclusion for young men to draw from at least ninety per cent of the sex-education literature that is current to-day. Now, I believe this is all wrong. In fact, I am so radical as to believe that the intelligent women of the world would gain more from temperance and unselfishness and delicacy of men in sexual functioning in marriage than from sexual continence before marriage. Of course, I do not propose that ideal sexual conditions in marriage may justify pre-marital incontinence, but I make this sharp contrast simply to emphasize the belief that sexual intemperance and selfishness of men in marriage causes more mental and physical suffering of women than does sexual incontinence of men before marriage, and I am not forgetting the vast problem of social diseases and prostitution. I urge, then, that those who attempt to direct young men through the mazes of sexual life should hold up ideals not only of pre-marital continence, but also of post-nuptial temperance and harmonious adjustment between husband and wife. This post-nuptial problem is far more difficult to solve, for the intimacy of married life, especially in the earlier years, is sure to offer stimuli that are likely to make sexual instincts more insistent than those that come from celibate repression. However, self-control and temperance in marriage is no new and unattainable ideal, and harmonious adjustment of men and women in marriage is far more common than the pessimists would have us believe. Sec. 38. _The Mental Side of the Young Man's Sexual Life_ [Sidenote: Effect of mental imagery.]