Even the most scientific investigator in science, the most thoroughgoing Positivist, cannot dispense with fiction; he must at least make use of categories, and they are already fictions, analogical fictions, or labels, which give us the same pleasure as children receive when they are told the "name" of a thing.

Mankind is becoming a single unit, and that for a unit to fight against itself is suicide.

All the art of living lies in a fine mingling of letting go and holding on.

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.

Still, whether we like it or not, the task of speeding up the decrease of the human population becomes increasingly urgent.

The conflict of forces and the struggle of opposing wills are of the essence of our universe and alone hold it together.

It is only the great men who are truly obscene. If they had not dared to be obscene, they could never have dared to be great.