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

Creativity is essential to particle physics, cosmology, and to mathematics, and to other fields of science, just as it is to its more widely acknowledged beneficiaries - the arts and humanities.

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

I think it's a problem that people are considered immoral if they're not religious. That's just not true. If you do something for a religious reason, you do it because you'll be rewarded in an afterlife or in this world. That's not quite as good as something you do for purely generous reasons.

Probably if you look like Tyra Banks, it probably is hard, even if you are really smart, for people to take - it surprises some.

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

An almost indispensable skill for any creative person is the ability to pose the right questions. Creative people identify promising, exciting, and, most important, accessible routes to progress - and eventually formulate the questions correctly.