Remember your humanity, and forget the rest.

To be able to fill leisure intelligently is the last product of civilization, and at present very few people have reached this level.

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 world is full of magical things patiently waiting for our wits to grow sharper.

There is exactly the same degree of possibility and likelihood of the existence of the Christian God as there is of the existence of the Homeric god. I cannot prove that either the Christian god or the Homeric gods do not exist, but I do not think that their existence is an alternative that is sufficiently probable to be worth serious consideration.

The time has come, or is about to come, when only large-scale civil disobedience, which should be nonviolent, can save the populations from the universal death which their governments are preparing for them.

Televison allows thousands of people to laugh at the same joke and still remain alone.