We live in the kind of society where, in almost all cases, hard work is rewarded.

If the purpose of the universe was to create humans then the cosmos was embarrassingly inefficient about it.

I've known from long ago that the universe was calling me. If you were one of those annoying adults that said, 'Oh, what are you gonna be when you grow up?' I would say, 'Astrophysicist .' And then they'd walk away real quickly.

People like death and mayhem.

Mars once was wet and fertile. It's now bone dry. Something bad happened on Mars. I want to know what happened on Mars so that we may prevent it from happening here on Earth.

You don't discard Newton. Newton becomes the limiting case of how you would apply Einstein's theories.

I don't ever tell people what to do! Even if it seems and feels that way sometimes, I don't think I should tell a person how to spend their money. I try not to tell people what to read.