Being arrested that also changed everything for me because I was suddenly seeing America from a different perspective all together. I did a couple of weeks in a county jail.

I think that you're smarter than we were, but we had two things: one is, in our naïveté we believed we could change the world. And number two, we believed that another world was possible. And once that belief took hold of some critical mass, a tiny minority nonetheless, but a critical mass of people, then the world did change.

The responsibility for the risks we posed to others in some of our most extreme actions in those underground years never leaves my thoughts for long. The antiwar movement in all its commitment, all its sacrifice and determination, could not stop the violence unleashed against Vietnam. And therein lies cause for real regret.

Every relationship is an experiment and what one learns from it is so fascinating.

Everyone who knew [Barack] Obama from being in Hyde Park knew he was the smartest guy in any room he walked into; a decent, compassionate, lovely person; pragmatic, middle-of-the-road and ambitious.

One-hundred facts about Vietnam and we studied the fact sheet and got in to these arguments and it was fantastic, and I remember one moment when we heard two students saying don't talk to those guys, meaning my brother and me. They've just memorized that stupid fact sheet. And we thought, gosh do we sound that good? It didn't seem possible. But that was my introduction to politics.

Your body's always going through changes. It's fattening or thinning or wrinkling or blotching, and the only thing you really have control over is putting some decoration on it.