My mother didn't try to stab my father until I was six, but she must have shown signs of oddness before that.

For a while in my teens, I was sure I had it. It was about getting to heaven. If heaven existed and lasted forever, then a mere lifetime spent scrupulously following orders was a small investment for an infinite payoff. One day, though, I realized I was no longer a believer, and realizing that, I couldn't go back.

What I always wanted to get seen as was as a good actor, when it was the acting I was doing. When I'm writing, I want to try to be seen as a good writer.

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

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.

I found I wasn't asking good enough questions because I assumed I knew something. I would box them into a corner with a badly formed question, and they didn't know how to get out of it. Now, I let them take me through it step by step, and I listen.

There's plenty of money to be had. But you also lose your soul.