In order to diminish the sexual impulse in girls at the menarche, where this impulse has developed prematurely or is abnormally intense, and even in later years with the same end in view, it is necessary, not merely that the diet should be suitable and non-stimulating and that the educational environment should be satisfactory, but above all that there should be regular occupation and regular physical activity. _Ribbing_ rightly calls attention to his experience in dealing with animals, that equally in the case of the stallion and of the mare, the whole of life may without difficulty be passed in complete abstinence from sexual gratification, provided that the diet is suitable, being neither too rich nor too meagre, and that the animal has regular occupation of a nature and degree adapted to its powers. In these animals a certain amount of disquiet, of restlessness, of sulky irritability, etc., may indeed be noticed at times, but these manifestations are to be overcome by mingled gentleness and firmness, aided now and again also by mild chastisement, but altogether without any severity. “Chastity,” says _Oesterlen_, “is possible only when the mode of life is simple and regular, and is characterized by appropriate self-command and frugality. For this reason it is rarely encountered in palaces and similar places, in which from youth onwards every one can do what he pleases; but just as little is it really practicable amid conditions of lack of culture, rudeness, and poverty.” From the point of view of education, what _Moreau_ wrote a hundred years ago is of importance: “In the ordinary course of nature the young woman at the time of the first appearance of menstruation is still in full possession of those amiable qualities of blamelessness and chastity which we are accustomed to denote by the term _moral virginity_. To an honorable and pure-minded man this beautiful attribute of budding womanhood is much dearer and more estimable than physical virginity. By libertines only is the latter regarded as a most valuable possession, since it furnishes a powerful stimulus to their jaded imaginations. But moral virginity and physical virginity are not always and necessarily associated, for either can be present in the absence of the other. Physical virginity may be destroyed by diverse forms of violence, and yet moral virginity may remain pure and uninjured amidst its ruins. Thus the two are widely different one from the other, widely different also are they in value and significance.”