A world without walls is the only sustainable world. . . . If the world is dominated by people who believe that their races, their religions, their ethnic differences are the most important factors, then a huge number of people will perish in this century.

I can spend your money better than you can.

A lot of presidential memoirs, they say, are dull and self-serving. I hope mine is interesting and self-serving.

The risk is that as we come out of this recession, we'll have so much debt to finance, we'll either have to have inflation or very high interest rates to continue to borrow the money, or both. That's a risk.

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.

A few years ago, (Barack Obama) would have been getting us coffee.

You know, I've always been really interested in this stuff, and I'm going to read this.