The problem of birth control has arisen directly from the effort of the feminine spirit to free itself from bondage. Woman herself has wrought that bondage through her reproductive powers and while enslaving herself has enslaved the world. The physical suffering to be relieved is chiefly woman's. Hers, too, is the love life that dies first under the blight of too prolific breeding. Within her is wrapped up the future of the race--it is hers to make or mar. All of these considerations point unmistakably to one fact--it is woman's duty as well as her privilege to lay hold of the means of freedom. Whatever men may do, she cannot escape the responsibility. For ages she has been deprived of the opportunity to meet this obligation. She is now emerging from her helplessness. Even as no one can share the suffering of the overburdened mother, so no one can do this work for her. Others may help, but she and she alone can free herself. The basic freedom of the world is woman's freedom. A free race cannot be born of slave mothers. A woman enchained cannot choose but give a measure of that bondage to her sons and daughters. No woman can call herself free who does not own and control her body. No woman can call herself free until she can choose consciously whether she will or will not be a mother. It does not greatly alter the case that some women call themselves free because they earn their own livings, while others profess freedom because they defy the conventions of sex relationship. She who earns her own living gains a sort of freedom that is not to be undervalued, but in quality and in quantity it is of little account beside the untrammeled choice of mating or not mating, of being a mother or not being a mother. She gains food and clothing and shelter, at least, without submitting to the charity of her companion, but the earning of her own living does not give her the development of her inner sex urge, far deeper and more powerful in its outworkings than any of these externals. In order to have that development, she must still meet and solve the problem of motherhood. With the so-called "free" woman, who chooses a mate in defiance of convention, freedom is largely a question of character and audacity. If she does attain to an unrestricted choice of a mate, she is still in a position to be enslaved through her reproductive powers. Indeed, the pressure of law and custom upon the woman not legally married is likely to make her more of a slave than the woman fortunate enough to marry the man of her choice.