I was brought up as a Catholic, and I'm no longer a Catholic. I don't talk about my beliefs too much in public probably because I feel very strongly that it's something personal - more than personal, it's private.

When does she do all this thinking? We're together all the time but she thinks deeply about things and with feeling and she can remember the facts. We've been married 48 years.

Our lives depend on good communication. Good communication helps personal relationships, it helps bosses and employees get along better. We rely on it.

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

Almost everybody that's well-known gets tagged with a nickname.

A really great actor, in a lucky performance, can transform himself or herself. I've seen actors do that. But often it's a mechanical transformation, which isn't as interesting, and you've got to be careful how you go about something like that, I think.

I've never tried to manipulate my image.