Few people realize the number of things that are possible.

One does not, by knowing all the physical laws as we know them today, immediately obtain an understanding of anything much. I love only nature, and I hate mathematicians.

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.

[B]eyond poverty, beyond the point that the material needs are reasonably satisfied, only from within is peace.

Science is a way for us to not fool ourselves.

The test of all knowledge is experiment.

Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"