I'm actually genuinely optimistic about the United States and what's possible in the United States. And when you're out here, you see Americans across racial and economic and socioeconomic lines working together. And you maybe get a little bit less cynical than when you sit in the seat of kind of the epicenter of it all.

I've always said as a political scientist that "culture" is what we use when we can't explain things. I think it's more about accessibility. Part of the problem is that this is an expensive game [golf]. I know in a couple of places where there are black members, and they come from pretty much the same socioeconomic level that the white members come from.

The moral case is, people say, "Oh they're not ready for democracy," but that's something someone who lives in a democracy would say about someone who doesn't live in a democracy. Well, if democracy is the highest form of human potential, then it can't be true for us and not for them. But, the practical case is democracies don't invade their neighbors. Democracies don't traffic in child soldiers. Democracies don't harbor terrorists as a state policy. So there's a reason to have more democratic states.

You cannot be on one hand dedicated to peace and on the other dedicated to violence. Those two things are irreconcilable.

I've been an athlete all my life. I was a competitive figure skater, and then when I realized skating was not an adult sport I took up tennis and played that quite seriously from the time I was about 18.

I studied piano from the age of three. My grandmother taught piano. I stayed at her house during the day while my parents worked. I obviously wanted to learn to play. And so she asked if she could teach me, and my mother said don't you think she's too young. My grandmother apparently said no. So I could read music before I could read, and I really don't remember learning to read music. So for me it's like a native language. When I look at a sheet of music, it just makes sense.

To say that people around the world deserve the same, the same life that we have in the United States, the same freedoms that we have, that seems to me, humble. I think it's humble to say that the United States, which has been given so much, should give back.