And above all things, never think that you're not good enough yourself. A man should never think that. My belief is that in life people will take you at your own reckoning.

Naturally, since [the Sumerians] didn't know what caused the flood anymore than we do, they blamed the gods. (That's the advantage of religion. You're never short an explanation for anything.)

My feeling is, quite simply, that if there is a God, He has done such a bad job that he isn't worth discussing.

Whenever I have endured or accomplished some difficult task -- such as watching television, going out socially or sleeping -- I always look forward to rewarding myself with the small pleasure of getting back to my typewriter and writing something.

The dangers that face the world can, every one of them, be traced back to science. The salvations that may save the world will, every one of them, be traced back to science.

Man's greatest asset is the unsettled mind.

When I read about the way in which library funds are being cut and cut, I can only think that American society has found one more way to destroy itself.