The amelioration of the world cannot be achieved by sacrifices in moments of crisis; it depends on the efforts made and constantly repeated during the humdrum, uninspiring periods, which separate one crisis from another, and of which normal lives mainly consist.

The propagandist's purpose is to make one set of people forget that certain other sets of people are human.

De Sade is the one completely consistent and thoroughgoing revolutionary of history.

And so, resisting the temptation to wallow in artistic remorse, I prefer to leave both well and ill alone and to think about something else

I know the outer world as well as you do, and I judge it. You know nothing of my inner world, and yet you presume to judge that world.

Peace is a necessary condition of spirituality, no less than an inevitable result of it.

The proper study of mankind is books.