when I wrestled, I would set aside the time to wrestle, so that in my mind it didn't interfere with my study time. That helped me psychologically. When I'm wrestling, I'm not studying the universe. And when I'm studying the universe, I'm not wrestling.

It's my duty to enlighten people.

Once you've got the makings of a star, gravity draws leftover gas and dust into a giant swirling disk. The dust continues to stick together, clumping into rocky asteroids, which eventually become orbiting rocky planets. And voila: a solar system!

I [do not know] when the end of science will come. ... What I do know is that our species is dumber than we normally admit to ourselves. This limit of our mental faculties, and not necessarily of science itself, ensures to me that we have only just begun to figure out the universe.

Speaking as just simply an American who cares about the economic health of our country, I see one of the surest ways to bring wealth and prosperity to the country is to innovate in science and technology.

Many people feel small because they're small and the universe is big, but I feel big.

I think if everyone had the luxury to pursue a life of exactly what they love, we would all be ranked as visionaries and brilliant.