What is the best advice you have ever received?

Then there was Von Neumann, the great mathemati-cian. We used to go for walks on Sunday. We'd walk in the canyons, and we'd often walk with Bethe, and Von Neumann, and Bacher. It was a great pleasure. And Von Neumann gave me an interesting idea; that you don't have to be responsible for the world that you're in.

I had lots of teachers encourage me. And I still know some of them, my high school teachers. But one of them encouraged me. She said, “Well, what do you want to do?” I said, “I want to be a doctor.” And she asked me where I wanted to go to school, and so I named all the Florida public universities which seemed within reach, financially. And she said, “Well, maybe you ought to apply to Duke, and maybe you’ll get a scholarship.” And I did both those things. I applied and got a scholarship.