I believe in having a private life.

I think that one of the greatest challenges we have today is around education. One of the things that is dividing us more and more is whether you have good prospects or you don't. Do you live a neighborhood where the schools are good? If you don't, your kids may not read until the time they're in third grade. Do you at least have access to a community college that will give you job training skills so that if you don't go for four years you will at least come out with a decent job and a decent wage. Too many people don't have that opportunity.

This system, built on free markets, free trade and free peoples and American protection, that's what got us from the end of World War II to the extraordinary events of the end of the Cold War and a system that was one of prosperity and peace for a lot of people, including for the United States.

I've never really been a workaholic. I work very hard, but I also enjoy playing. I think it's important to have a balanced and well-rounded life.

If the strong exploit the weak, democracy will not be stable.

Multilateral diplomacy is hard. It's slower, it's tougher, it's a bigger slog. I've learned that sometimes the things you'd most like to do something about, you really have difficulty unless the international community really mobilizes.

There's no doubt that it's still a dangerous place, Afghanistan. The fortunate thing is that the United States was helping to provide security for Chairman Karzai. And it shows that the United States is committed to that regime.