It's because somebody knows something about it that we can't talk about physics. It's the things that nobody knows anything about we can discuss.

If you have any talent, or any occupation that delights you, do it, and do it to the hilt. Don't ask why, or what difficulties you may get into.

Some people say, "How can you live without knowing?" I do not know what they mean. I always live without knowing. That is easy. How you get to know is what I want to know.

Thank you very Much, I enjoyed myself

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

You can always recognize truth by its beauty and simplicity.

I, a universe of atoms, an atom in the universe.