The real hope of the world lies in putting as painstaking thought into the business of mating as we do into other big businesses.

Possibly drastic and Spartan methods may be forced upon American society if it continues complacently to encourage the chance and chaotic breeding that has resulted from our stupid, cruel sentimentalism.

More children from the fit, less from the unfit -- that is the chief aim of birth control.

The most merciful thing a large family can do to one of its infant members is to kill it.

Woman must have her freedom, the fundamental freedom of choosing whether or not she will be a mother and how many children she will have. Regardless of what man's attitude may be, that problem is hers - and before it can be his, it is hers alone.

Birth control is nothing more or less than...weeding out the unfit.

A woman’s duty: To look the whole world in the face with a go-to-hell look in the eyes… to speak and act in defiance of convention.