Philosophy of science is about as useful to scientists as ornithology is to birds.

Everybody who reasons carefully about anything is making a contribution ... and if you abstract it away and send it to the Department of Mathematics they put it in books.

I was born not knowing and have had only a little time to change that here and there.

Outside of their particular area of expertise scientists are just as dumb as the next person.

Physics is to mathematics what sex is to masturbation.

We have this terrible struggle to try to explain things to people who have no reason to want to know.

There was a time when the newspapers said that only twelve men understood the theory of relativity. I do not believe there ever was such a time ... On the other hand, I think I can safely say that nobody understands quantum mechanics.