I realized early on that success was tied to not giving up.

I'm addicted to Altoids. I call them 'acting pills.'

I just don't think of age and time in respect of years. I have too much experience of people in their seventies who are vigorous and useful and people who are thirty-five who are in lousy physical shape and can't think straight. I don't think age has that much to do with it.

When I met scientists, I found them to be as various as any other group of people.

Henry: Well I'm sorry about your head though, but I thought you were one of them. Indiana: Dad, they come in through the doors.

That's always my ambition is to create a character out of what will help tell the story. I've never been an actor to say my character wouldn't do that, because he should do that in order to help tell the story.

You know you're getting old when all the names in your black book have M. D. after them.