When I get bored, or get stuck on an equation, I like to go ice skating, but it makes you forget your problem. Then you can tackle the problem with a fresh new insight. Einstein liked to play the violin to relax. Every physicist likes to have a past time. Mine is ice skating.

We have learned more about the brain in the last fifteen years than in all prior human history, and the mind, once considered out of reach, is finally assuming center stage.

When I get bored, or get stuck on an equation, I like to go ice skating, but it makes you forget your problem. Then you can tackle the problem with a fresh new insight. Einstein liked to play the violin to relax. Every physicist likes to have a past time. Mine is ice skating.

I have nothing against investment banking, but it's like massaging money rather than creating money.

Growing new organs of the body as they wear out, extending the human lifespan? What's not to like?

Science is the engine of prosperity. But you'd never know it, listening to some of the politicians. They're lawyers and businessmen, not scientists. Lawyers and businessmen massage wealth; they don't create it.

There's the caveman in us. The caveman in you says, "I want direct contact. I don't want a picture." The caveman in our body says once in a while, we have to go outside. We have to meet real people, talk to real people, and do real things.