The more rapidly a civilization progresses, the sooner it dies for another to rise in its place.

Sexual pleasure, wisely used and not abused, may prove the stimulus and liberator of our finest and most exalted activities.

The mother is the child's supreme parent.

Charm is a woman's strength just as strength is a man's charm.

Courtship, properly understood, is the process whereby both the male and the female are brought into that state of sexual tumescence which is a more or less necessary condition for sexual intercourse. The play of courtship cannot, therefore, be considered to be definitely brought to an end by the ceremony of marriage; it may more properly be regarded as the natural preliminary to every act of coitus.

I regard sex as the central problem of life. And now that the problem of religion has practically been settled, and that the problem of labor has at least been placed on a practical foundation, the question of sex—with the racial questions that rest on it—stands before the coming generations as the chief problem for solution. Sex lies at the root of life, and we can never learn to reverence life until we know how to understand sex.

The sun, the moon and the stars would have disappeared long ago... had they happened to be within the reach of predatory human hands.