In the last chapter I tried to deal with the actual problem created in this country by the disproportion of the sexes--the fact that there are, roughly, one and three-quarters to two million more women than men in this country; and I was obliged to confine myself simply to stating the problem, which, to my mind, is very greatly intensified by the fact, generally ignored, that the sex needs of a woman are just as imperative, their suppression just as hard to bear, as a man's; that woman is fully as human as man, and that parenthood and loverhood and all that the satisfaction of the sex instinct means to him, it means also to her.
Source: wiktionary