Man, some modern philosophers tell us, is alienated from his world: he is a stranger and afraid in a world he never made. Perhaps he is; yet so are animals, and even plants. They too were born, long ago, into a physico-chemical world, a world they never made.

It is wrong to ask who will rule. The ability to vote a bad government out of office is enough. That is democracy.

If you can't say it simply and clearly, keep quiet, and keep working on it till you can.

It is complete nihilism to propose laying down arms in a world where atom bombs are around. It is very simple: there is no way of achieving peace other than with weapons.

I have come to the conclusion that Darwinism is not a testable scientific theory, but a metaphysical research programme.

If you know that things are bound to happen whatever you do, then you may feel free to give up the fight against them.

True ignorance is not the absence of knowledge, but the refusal to acquire it.