As biological organisms made of matter, we are subject to the laws of physics and biology: as conscious persons who create our own history we are free to decide what that history shall be. Without science, we should have no notion of equality; without art, no notion of liberty.

Those to whom evil is doneDo evil in return.

Left to itself the masculine imagination has very little appreciation for the here and now; it prefers to dwell on what is absent, on what has been or may be. If men are more punctual than women, it is because they know that, without the external discipline of clock time, they would never get anything done.

The true men of action in our time those who transform the world are not the politicians and statesmen but the scientists. Unfortunately poetry cannot celebrate them because their deeds are concerned with things, not persons, and are therefore speechless. When I find myself in the company of scientists, I feel like a shabby curate who has strayed by mistake into a drawing room full of dukes.

Politics cannot be a science, because in politics theory and practice cannot be separated, and the sciences depend upon their separation.

Anyone who has a child today should train him to be either a physicist or a ballet dancer. Then he'll escape.

The actors today really need the whip hand. They're so lazy. They haven't got the sense of pride in their profession that the less socially elevated musical comedy and music hall people or acrobats have. The theater has never been any good since the actors became gentlemen.