I expect death to be nothingness and, for removing me from all possible fears of death, I am thankful to atheism.

You don't have to be able to lay eggs to know when one of them is rotten.

We all know we fall. Newton's discovery was that the moon falls, too-and by the same rule that we do.

Nonsense! The most hopelessly stupid man is he who is not aware that he is wise.

Writing, to me, is simply thinking through my fingers.

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.)

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.