The scientist is motivated primarily by curiosity and a desire for truth.

Medicine also disregards national boundaries.

This coupling together of science with international peace, is, I think, particularly significant.

Happy indeed is the scientist who not only has the pleasures which I have enumerated, but who also wins the recognition of fellow scientists and of the mankind which ultimately benefits from his endeavors.

I'm very into science-fantasy, that kind of swordfights and magic and technology thing.

There is good science you can do in space. There is stuff there you cannot do on Earth and we can gain understanding from it.

We tend to think of science as finding equations, like E=MC2, that are simple and elegant. But maybe some theories are complicated, and we can only find the simple ones.

False facts are highly injurious to the progress of science, for they often endure long; but false views, if supported by some evidence, do little harm, for every one takes a salutary pleasure in proving their falseness.