"I'm a big proponent of space exploration, not just for scientific discovery, but for the inspiration it provides."

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

"My brain is too big for my head. I have to wear a special hat."

"I'm not saying that science has all the answers. I'm saying that science is the only way we're going to get answers."

"The problem with 'alternative medicine' is that once it's proven to work, it's just called medicine."