I'm very glad my mother didn't let me quit piano lessons at age 10. She said I wasn't old enough or good enough to make that decision, and she was right. I remember at the time I was shocked. I did not like that my mother said those things to me. But when I got a chance to play with Yo-Yo Ma or more recently with Aretha Franklin, I thought, I'm really glad she said what she did.

I've speculated about what my life might have been like as a musician, but I'm afraid I came to the conclusion that I probably would've either been teaching piano or maybe gotten to play at Nordstrom's department store.

America's still a very, very powerful symbol and a very important place of leadership for the world.

Most of the people who were responsible for 9/11 are now in custody or have been killed. But there are others, and they plot and they plan, and they hope to pull it off again. And while we have to be right 100 percent of the time, they only have to be right once. So there's no way to overreact to that.

Sometimes people decide to write reports even though they haven't been to Guantanamo . And so I would just suggest that people look at some of the work that's been done by people who have been there. But that's not to say that we will not be very glad at the day that conditions permit the closure of Guantanamo and the trying of its inhabitants or for their release.

The essence of America - that which really unites us - is not ethnicity, or nationality or religion - it is an idea - and what an idea it is: That you can come from humble circumstances and do great things.

Ultimately, we didn't go to Germany to create a democracy. We went to overthrow Adolf Hitler. But once a democracy was there, Germany was a much bigger supporter of and help to our national interests, both economic and security than had ever been before.