He who refuses to do arithmetic is doomed to talk nonsense.

I love to talk about nothing. It's the only thing I know anything about.

Algebra is the metaphysics of arithmetic.

Don't talk to me about a man's being able to talk sense; everyone can talk sense. Can he talk nonsense?

Man is the only creature that refuses to be what he is.

Nonsense remains nonsense, even when talked by world-famous scientists.