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 don't like anything that's "just an escape." To me the best part of golf is that, unlike my tennis game, I can actually get better. I've probably reached my plateau in tennis, but in golf I have a lot of room for improvement. I really enjoy working on my game. I like practicing. I chart my rounds.

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 believe our Presidents work hard and it's the loneliest job in the world.

For 60 years, my country, the United States, pursued stability at the expense of democracy in this region, here in the Middle East, and we achieved neither.

Education is transformational. It changes lives. That is why people work so hard to become educated and why education has always been the key to the American Dream, the force that erases arbitrary divisions of race and class and culture and unlocks every person's God-given potential.

We're in a new world. We're in a world in which the possibility of terrorism, married up with technology, could make us very, very sorry that we didn't act.