All are agreed I mean all who are capable of thinking and have given the subject some thought that for the welfare of the race and for his own physical and mental welfare it is important that the boy be given some sex instruction. All are not agreed as to the character of the instruction, its extent, the age at which it should be begun and as to who the teacher should be the father, the family physician, the school teacher or a specially prepared book but as to the necessity of sex knowledge for the boy there is now substantial agreement among the conservatives as well as among the radicals.

No such agreement exists concerning sex knowledge for the girl. Many still are the men and women and not among the conservatives only who are strongly opposed to girls receiving any instruction in sex matters. Some say that such instruction except a few hygienic rules about menstruation is unnecessary, because the sex instinct awakens in girls comparatively late, and it is time enough for them to learn about such matters after they are married. Others fear that sex knowledge would destroy the mystery and romance of sex, and would rob our maidens of their greatest charms modesty and innocence. Still others fear that sex instruction would tend to awaken the sex instinct in our girls prematurely; would direct their thoughts to matters about which they would not think otherwise; and they argue that the warnings about venereal disease, prostitution, etc., which are an integral part of sex instruction, tend to create a cynical, inimical attitude towards the male sex, which may even result in hypochondriac ideas and antagonism to marriage.

I do not deny that there is a grain of truth in all the above objections. Sex instruction does cause some girls to think of sex matters earlier than they otherwise would, and some girls have been made bitter and hypochondriac, and disgusted with the male sex. But it would not be difficult to demonstrate that it was not sex instruction per se that was responsible for these deplorable results; it was the wrong kind of instruction that was to blame it was the wrong emphasis, the lurid exaggerations that caused the mischief, and not the truth. In other words, it is not sex information, it is sex misinformation, that is pernicious. And, of course, to this everybody will agree: rather than false information, better no information at all.

But if the information to be imparted be sane, honest and truthful, without exaggerating the evils and without laying undue emphasis on the dark shadows of our sex life, then the results can be only beneficent. And the task I have put before myself in this book is to give our girls and women sane, square and honest information about their sex organs and sex nature, information absolutely free from luridness, on the one hand, and maudlin sentimentality, on the other. The female sex is in need of such information, much more so than is the male sex. Yes, if boys, as is now universally agreed, are in need of sex instruction, then girls are much more in need of it. Why? For several important reasons.

The first reason why sex instruction is even more important for girls than it is for boys is because a misstep in a girl has much more disastrous consequences than it has in a boy. The disastrous results of a misstep in a boy are only physical in character; the results of the same misstep in a girl may be physical, moral, social and economic. To speak more plainly. If a boy, through ignorance, rashly indulges in illicit sexual relations, the worst consequence to him may be infection with a venereal disease. But he is not considered immoral, he is not despised, he is not ostracized, he does not lose his social standing in the slightest degree, and when he is cured of his venereal disease he has no difficulty in getting married. He does not even have to conceal his past sexual history from his wife. But if a girl makes a misstep the consequences to her are terrible indeed; it may not only cost her her health and social standing, she may have to pay with her very life. She runs the risk of venereal infection the same as the boy does, but in addition she runs the risk of becoming pregnant, which in our present social system is a catastrophe indeed. To save herself from the disgrace of an illegitimate child she may have an abortion produced; the abortion may have no bad results, but it may, if performed bunglingly, leave her an invalid for life, or it may kill her outright. If she is so unfortunate as to be unable to get anybody to produce an abortion, she gives birth to an illegitimate child, which she is forced in most cases to put away in an institution of some sort where she hopes and prays it may die soon and, in general, it does. If it does not die, she has for the rest of her life a Damocles’ sword hanging over her head, and she is in constant terror lest her sin be found out. She does not permit herself to look for a mate, but if she does get married, the specter of her antematrimonial experience is constantly before her eyes. After years and years of married life, the husband may divorce her if he finds out that she had “sinned” before she knew him. And unless the husband is a broad-minded man and loves her truly and unless she made a clean breast of everything to him before marriage, her life is continuous torture. But even if the girl escaped pregnancy, the mere finding out that she had an illicit experience deprives her of social standing, or makes her a social outcast and entirely destroys or greatly minimizes her chances of ever marrying and establishing a home of her own. She must remain a lonely wanderer to the end of her days.

The enormous difference in the results of a misstep in a boy and a girl is clearly seen, and for this reason alone, if for no other, sex instruction is of more importance to the girl than it is to the boy.

But there are other important reasons, and one of them is beautifully and truthfully expressed by Byron in his two well-known lines.

Man’s love is of man’s life a thing apart,
’Tis woman’s whole existence.

Yes, love is a woman’s whole life.

Some modern women might object to this. They might say that this was true of the woman of the past, who was excluded from all other avenues of human activity. The woman of the present day has other interests besides those of Love. But I claim that this is true of only a small percentage of women; and in even this small minority of women, social, scientific and artistic activities cannot take the place of love; no matter how busy and successful these women may be, they will tell you if you enjoy their confidence that they are unhappy, if their love life is unsatisfactory. Nothing, nothing can fill the void made by the lack of love. The various activities may help to cover up the void, to protect it from strange eyes, they cannot fill it. For essentially woman is made for love. Not exclusively, but essentially, and a woman who has had no love in her life has been a failure. The few exceptions that may be mentioned only emphasize the rule.

But not only psychically is a woman’s love and sex life more important than a man’s, physically she is also much more cognizant of her sex and much more hampered by the manifestation of her sex nature than man is. To take but one function, menstruation. From the age 13 or 14 to the age of forty-five or fifty it is a monthly reminder to woman that she is a woman, that she is a creature of sex; and, while to many women this periodically recurring function is only a source of some annoyance or discomfort, to a great number it is a cause of pain, headache, suffering, or complete disability. Man has no such phenomenon to annoy him practically his whole life.

But more important are the results of love-union, of sex relations. A man after a sexual relation is just as free as he was before. A woman, if the relation has resulted in a pregnancy, which is generally the case, unless special pains are taken it should not so result, has nine troublesome months before her, months of discomfort if not of actual suffering; she then has an extremely trying and painful ordeal, that of childbirth, and then there is another trying period, the period of lactation or of nursing and of bringing up the baby. The penalty seems almost too great.

And when the woman is on the point of ceasing to menstruate she does not do so smoothly and comfortably. She has to go through a period called the menopause, which may last one or two years and which may bring discomforts and dangers of its own. Man does not have to go through such a distinct period of demarcation separating his sexual from his non-sexual life. Altogether it cannot be denied that woman is much more a slave of her sex nature than man is of his. Yes, Nature has handicapped woman much more heavily than she has man.

In short, both in view of the fact that sexual ignorance with its possible missteps has much more disastrous consequences for the girl than it has for the boy, and in view of the fact that the sex instinct and its physical and psychic manifestations occupy a much more important part in woman’s life than they do in the life of man, we consider the necessity of sex instruction much greater in the case of woman than in the case of man. I do not wish to be misunderstood as underestimating the need of sex instruction for the male only I consider the need even greater in the case of the female.