The one hour live debate in the West Wing that we did was one of the most exciting times for me on stage or on camera, because anything could go wrong.

It's too bad I'm not as wonderful a person as people say I am, because the world could use a few people like that.

I find myself going to places where I really have no business, speaking to these people in a whole other field that I have no extensive knowledge of. But I do it very often because it scares me.

I'm in this wonderful position where I can do what interests me. And whatever comes along that interests me, I do. The rest of the time I bother scientists about communicating.

I'm an angry person, angrier than most people would imagine, I get flashes of anger. What works for me is working out when it's useful to use that anger.

For me, I find that even though I've accomplished a few things in my life, looking back on accomplishments doesn't give me a sense of satisfaction.

I had never really wanted to be famous. Everyone is supposed to want to be rich and famous, but as a boy I never knew what rich was, and the first view I had of famous made me leery.