There are still many people in America who regard depressions as acts of God. I think Keynes proved that the responsibility for these occurrences does not rest with Providence.

The universe may have a purpose, but nothing we know suggests that, if so, this purpose has any similarity to ours.

I like mathematics because it is not human and has nothing particular to do with this planet or with the whole accidental universe - because, like Spinoza's God, it won't love us in return.

The essence of life is doing things for their own sakes.

Perhaps the nuclear physicists have come so near to the ultimate secrets that He thinks it time to bring their activities to a stop. And what simpler method could He devise than to let them carry their ingenuity to the point where they exterminate the human race?

Religion and Science are two aspects of social life, of which the former has been important as far back as we know anything of man

Be isolated, be ignored, be attacked, be in doubt, be frightened, but do not be silenced.