Nature does not care what we call it, she just keeps on doing it.

To guess what to keep and what to throw away takes considerable skill. Actually it is probably merely a matter of luck, but it looks as if it takes considerable skill.

No one really understands quantum mechanics.

Work as hard and as much as you want to on the things you like to do the best.

A scientist is never certain. ... We absolutely must leave room for doubt or there is no progress and there is no learning.

Science is a way for us to not fool ourselves.

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.