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.

Real life is, to most men, a long second-best, a perpetual compromise between the ideal and the possible; but the world of pure reason ;knows no compromise, no practical limitations, no barrier to the creative activity.

For my part I distrust all generalizations about women, favorable and unfavorable, masculine and feminine, ancient and modern; all alike, I should say, result from paucity of experience.

The fundamental concept in social science is Power, in the same sense in which Energy is the fundamental concept in physics.

Boredom is a vital problem for the moralist, since at least half the sins of mankind are caused by the fear of it.

Unless one is taught what to do with success after getting it, achievement of it must inevitably leave him prey to boredom.

Of all forms of caution, caution in love is perhaps the most fatal to true happiness.

There is much pleasure to be gained from useless knowledge.

The degree of one's emotions varies inversely with one's knowledge of the facts- the less you know the hotter you get.

Indignation is a submission of our thoughts, but not of our desires.