One of the nice things about math and science is it’s obvious, you get the answer or you don’t get the answer.

Sometimes models are surprisingly smart.

I'm not creating the universe. I'm creating a model of the universe, which may or may not be true.

The universe has its secrets. Extra dimensions of space might be one of them. If so, the universe has been hiding those dimensions, protecting them, keeping them coyly under wraps. From a casual glance, you would never suspect a thing.

When I was in school I liked math because all the problems had answers. Everything else seemed very subjective.

Faith just doesn't have anything to do with what I'm doing as a scientist. It's nice if you can believe in God, because then you see more of a purpose in things. Even if you don't, though, it doesn't mean that there's no purpose. It doesn't mean that there's no goodness. I think that there's a virtue in being good in and of itself. I think that one can work with the world we have.

I considered going into business or becoming a lawyer - not for the money, but for the thrill of problem-solving.