I learned a lot about my parents, who were both teachers. I had known that my parents were very strongly in favor of education. I had known that they had an impact on a lot of people, but people came out of the woodwork who have said, "You know, without your father, I would never have gone to college," very successful people. And so I learned how widespread their educational evangelism really was.

I'm a strong believer that you have to have an equal opportunity to fail and to try things that are hard. I always tell my students, "Don't just take things that are easy for you. If you're really good at math, don't take just math. Take classes that make you write. If you're a really great writer, but bad at math, take math and make yourself work your way through it."

It takes courage to set priorities because doing so is an admission that American policy cannot be all things to all people - or rather to all interest groups

I was born in segregated Birmingham, Alabama. I didn't have a white classmate till we moved to Denver.

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.

It is possible to work across the aisle in Washington, but it's hard. And I think it's been made worse by the kind of 24-hour news cycle, the fact that everything is on TV before you can work things out quietly. I think it's the intensity of information that makes it feel more difficult to get things done. But I didn't leave with a bitter taste about the politics. The one thing that I would say is, I do think there is an unfortunate tendency to turn political differences, or policy differences, into critiques of one another's character or motives, and that's unfortunate.

it is a longstanding principle that sitting national security advisers do not testify before the Congress.