Science is like sex: sometimes something useful comes out, but that is not the reason we are doing it

If a guy tells me the probability of failure is 1 in 100,000, I know he's full of crap.

We have found it of paramount importance that in order to progress, we must recognize our ignorance and leave room for doubt.

People often think I'm a faker, but I'm usually honest, in a certain way--in such a way that often nobody believes me!

Ordinary fools are all right; you can talk to them, and try to help them out. But pompous fools-guys who are fools and are covering it all over and impressing people as to how wonderful they are with all this hocus pocus-THAT, I CANNOT STAND! An ordinary fool isn't a faker; an honest fool is all right. But a dishonest fool is terrible!

Experiment is the sole judge of the validity of any idea.

A philosopher once said, 'It is necessary for the very existence of science that the same conditions always produce the same results.' Well, they don't!