The chances that your tombstone will read 'Killed by Asteroid' are about the same as they'd be for 'Killed in Airplane Crash.'

There are two kinds of comments that I get. One is, oh, you're such a natural up there, and the other one is, you're working hard up there. And the ones who say I'm working hard are teachers, they're the educators; they're the people who are the performers. It's a huge investment of my psycho-emotional energy to pull that off and to make it look smooth.

What I’m saying is, when different experiments give you the same result, it is no longer subject to your opinion. That’s the good thing about science: It’s true whether or not you believe in it. That’s why it works.

Imagine a world in which we are all enlightened by objective truths rather than offended by them.

Everyone has all different experiences in school. I just know that throughout my life, at no time did any teacher ever point to me and say, hey. He'll go far.

After all, what nobler thought can one cherish than that the universe lives within us all?

When you innovate, the jobs can't go overseas because other countries haven't figured out how to do it yet.