I never found anybody I wanted to spend my life with. People say, "Didn't you want to get married?" Well, sure, but it's not abstract, there has to be someone you want to marry. I'm pretty traditional. Marriage would have to come first, before kids.

My favorite quote is Thomas Jefferson`s "The God who gave us life gave us liberty at the same time." Well, he was a slave-owner. But these institutions, while they weren't perfect at the time, did allow people to prosper and to continue to struggle and build toward them. That's what you need, is good institutions and I think people will eventually live up to them.

But we do have confidence in our institutions. We are not Russia. We have an executive that is constrained. We have a legislature that is real. We have a press that is free. We have courts that are independent. This is not Russia.

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."

There is nothing better than being in a classroom with really, really brilliant students, and opening up new worlds to them. That's what I love doing.

When I went off to college, I was expecting to be a concert musician. In music school I heard all of these kids who were just unbelievable. And I understand that you can be very, very good, but there's something that separates very, very good from great, and I knew that I wasn't great.

Success is not assured, but America is resolute: this is the best chance for peace we are likely to see for some years to come - and we are acting to help Israelis and Palestinians seize this chance.