The book was Maniacs in the Fourth Dimension, by Kilgore Trout. It was about people whose mental diseases couldn't be treated because the causes of the diseases were all in the fourth dimension, and three-dimensional Earthling doctors couldn't see those causes at all, or even imagine them.

Being a Humanist means trying to behave decently without expectation of rewards or punishment after you are dead.

I think William Shakespeare was the wisest human being I ever heard of. To be perfectly frank, though, that's not saying much.

She hated people who thought too much. At that moment, she struck me as an appropriate representative for almost all mankind.

All right - I'll tell you what you did for me: you went for happy, silly, beautiful walks with me.

Maybe they invited me because they know I have a tuxedo

I say in speeches that a plausible mission of artists is to make people appreciate being alive at least a little bit. I am then asked if I know of any artists who pulled that off. I reply, 'The Beatles did.