A few years back, this guy [Barack Obama] would be serving us coffee.

The most powerful people on earth are focus groups.

[It] has a lot of things in it that I like, but I think it's way too hard on financing things from immigrants.

Effort, not ability, makes the biggest difference in achievement.

Music is about communication, creativity, and cooperation, and by studying music in schools, students have the opportunity to build on these skills, enrich their lives, and experience the world from a new perspective.

Music, to me, was - is - representative of everything I like most in life. It's beautiful and fun, but very rigorous. If you wanted to be good you had to work like crazy. It was a real relationship between effort and reward. My musical life experiences were just as important to me, in terms of forming my development, as my political experiences or my academic life.

I got a letter from 13-year-old Ryan from Belfast. Now, Ryan, if you're out in the crowd tonight, here's the answer to your question. No, as far as I know, an alien spacecraft did not crash in Roswell, New Mexico, in 1947. And, Ryan, if the United States Air Force did recover alien bodies, they didn't tell me about it, either, and I want to know.