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.