I've lived this long because I didn't die.

Mathematicians grow very old; it is a healthy profession. The reason you live long is that you have pleasant thoughts. Math and physics are very pleasant things to do.

Mathematics is a vast adventure; its history reflects some of the noblest thoughts of countless generations.

I married beneath me, all women do.

It is not always granted to the sower to see the harvest.

When you're away for a long time, tastes change, fans move on. You hate to think about it, but it's an ugly fact of life.

I thought I did until I looked at some old game films. (When asked if he played college football)

Defense is the first act of war.

I wouldn't give myself any advice, because advice is kinda bullshit. Take a deep breath and don't take any of it too seriously.

We serve life, not because it is broken, but because it is holy.

My strength is my enthusiasm.

I cannot experience your experience. You cannot experience my experience. We are both invisible men.

A man is in a great place when he has no one to turn to but God.