Nine-tenths of the appeal of pornography is due to the indecent feelings concerning sex which moralists inculcate in the young; the other tenth is physiological, and will occur in one way or another whatever the state of the law may be.

The modern man thinks that everything ought to be done for the sake of something else, and never for its own sake.

I am as drunk as a lord, but then, I am one, so what does it matter ?

The finding of arguments for a conclusion given in advance is not philosophy, but special pleading

Neither acquiescence in skepticism nor acquiescence in dogma is what education should produce.

Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.

Truth is for the gods; from our human point of view, it is an ideal, towards which we can approximate, but which we cannot hope to reach.