Our responsibility is to do what we can, learn what we can, improve the solutions, and pass them on.

I love only nature, and I hate mathematicians.

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

So I have just one wish for you – the good luck to be somewhere where you are free to maintain the kind of integrity I have described, and where you do not feel forced by a need to maintain your position in the organization, or financial support, or so on, to lose your integrity. May you have that freedom.

Mathematics is a language plus reasoning. It's like a language plus logic. Mathematics is a tool for reasoning.

No problem is too small or too trivial if we can really do something about it.

But the real glory of science is that we can find a way of thinking such that the law is evident.