"I'm not saying I'm a genius. I'm just saying I have a lot of questions."

"I’m convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance."

"I don't have a favorite planet. They're all my children."

"If you're religious, and you have some sort of revelation that makes you think something is true, that's not science. That's belief."

"My favorite color is the color of the universe, which is a kind of beige-white."