Secrets of the cosmos will begin to unravel. I, for one, can't wait.

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

Physicists have yet to understand why the Higgs boson's mass is what it is.

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.

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

You have to be careful when you use beauty as a guide. There are many theories people didn't think were beautiful at the time but did find beautiful later—and vice versa. I think simplicity is a good guide: The more economical a theory, the better.

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.