I have thought about punching people out. Sometimes, I've thought, 'Why don't I just act on that impulse?' But then, I've never hit anybody in anger. Hey! I've never hit anybody for fun.

In the midst of the sense of tragedy or loss, sometimes laughter is not only healing, it's a way of experiencing the person that you've lost again.

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.

In 2003, I almost died of an intestinal blockage when I was on a mountain in Chile, filming a segment for 'Scientific American Frontiers.'

It makes it fun. When an actor plays a character, you want what that character wants. Otherwise it doesn't look authentic. So I really want to defeat Jimmy - I mean Jimmy as the character.

I'm greedy for that satisfaction of doing something hard and knowing that, even though I was afraid I couldn't do it, that somehow I can deliver.

There are two things that I get a lot of pleasure from in my life, and that is, doing what I know how to do well - that really makes me happy. The other one, and probably an equal pleasure, is finding out how I can be helpful and then really being helpful.