The end of Students for a Democratic Society is viewed by me and a lot of other people as a terrible sorry in many ways, tragic event even though I participated in it and played some role in it. But I regret a lot of that.

It was Frederick Douglass, John Brown, Harriet Tubman, Wendell Phillips - these were the people who made abolition real. Now, none of you guys is in favor of slavery, right?

I mean the prime case that you can look at is Martin Luther King, who was only an activist for 13 years. But every year, he became deeper, more concerned, connecting more issues.

Students for a Democratic Society was founded in 1961.

The fact is that in my prep school, I went to a boarding school, 39 young men graduated from that prep school. Five years later, a quarter of us were in SDS, in Students for Democratic Society. Not because we were particularly chosen or because we were as I say, we were lucky but we were mainly luckily to grow up at a time where this black freedom movement was really defining the moral character of what it meant to be a citizen and a person.

One hundred years from now, we'll all be dead. It's hard to believe. One hundred years from now, everyone we see every day will be gone.

I have an addiction to caffeine.