If matters concerning sex are treated properly during a child’s development and education, the necessity for psycho-analysis and any extension of analytic knowledge of the foundations of one’s own mind that it may bring is done away with. If it can be ensured that there is no obvious avoidance of the subject leading to repression in the child’s mind, and on the other hand no undue prominence given to it so that a morbid curiosity is aroused, a large proportion of the conflicts that now arise could be avoided. The other necessity is that there should be provision for sublimation--in art or music, in social service or in one’s own work, in religion, or, in modified form, in sport or romance. It is perfectly possible, in such case, for mental development to proceed naturally and comparatively smoothly towards a unified organization of the type of which we have spoken. Psycho-analysis would not help a boy or girl developing in such a way, any more than would a study of all the characters we have inherited from our simian forefathers help us to realize our specifically human possibilities. On the other hand, when the intellectual desire to know things for their own sake is aroused, as it is in most boys and girls between the ages of about fourteen and twenty, then just as it is good, in order to get a true picture of the universe, for them to know and be presented with the evidence for man’s evolution from lower forms, so it is good for the same reason to give them an account of their psychological organization, including evidence for the rôle which sex plays in the genesis of higher mental activities--without, however, any necessity for psychological experiments in burrowing into their own foundations. In this case such knowledge would have the additional value of putting them on their guard against allowing themselves to be prejudiced by their own incompletely-adjusted conflicts. We are all of us too prone to think that a phenomenon is somehow “explained,” or interpreted better, by analysing it into its component parts or discovering its origin than by studying it in and for itself. The new type of mental organization acquired by man permits of wholly new types of mental process, of a complexity as far exceeding those that we deduce in brutes as does the physical organism of a dog or an ant that of a polyp or a protozoan: and it is part of our business to realize those possibilities to the fullest extent.