It is becoming clear that the old platitudes can no longer be maintained, and that if we wish to improve our morals we must first improve our knowledge.

What we call 'morals' is simply blind obedience to words of command.

Birth-control is effecting, and promising to effect, many functions in our social life.

The omnipresent process of sex, as it is woven into the whole texture of our man's or woman's body, is the pattern of all the process of our life.

The sanitary and mechanical age we are now entering makes up for the mercy it grants to our sense of smell by the ferocity with which it assails our sense of hearing.

If men and women are to understand each other, to enter into each other's nature with mutual sympathy, and to become capable of genuine comradeship, the foundation must be laid in youth.