If you're always in the company of people who agree with you, you're going to think of people who don't agree with you as venal or stupid. I constantly tell my students that if they're in the company of people who always say "amen" to what you say, find other company. And that is the source of illiberalism, when you are unable to listen to someone who thinks differently. That's when democracies are in trouble.

I don't think that anybody could have predicted that these people would take an airplane and slam it into the World Trade Center, take another one and slam it into the Pentagon, that they would try to use an airplane as a missile.

I don't like anything that's "just an escape." To me the best part of golf is that, unlike my tennis game, I can actually get better. I've probably reached my plateau in tennis, but in golf I have a lot of room for improvement. I really enjoy working on my game. I like practicing. I chart my rounds.

Every life is worthy and every life is capable of greatness. We have an obligation to make sure that opportunity for greatness is there.

It hasn't yet materialized that I went into sports management, but I haven't ruled it out yet, either. I only half-jokingly remarked that I'd love to be the commissioner of the NFL. But as I recently told current Commissioner Roger Goodell, that job looked a lot more appealing when I was struggling with the Russians and the Iranians everyday.

I get letters from kids from all over the country. I always try to answer them because there were people I looked up to in my youth and just wanted to be in contact with. It's also important to realize that you find your role models in a lot of different places. I've never believed that your role models have to look like you. You can find them in all sort of colors, shapes and sizes.

The best armor against everything around you is to be well educated, to work hard, to be twice as good as if you had to be, to do languages and culture better.