I haven't been silent. I teach, I lecture at universities, I write, I'm not silent.

Lyndon Johnson who was the president who was executing that war, announced in the spring of 1968 that he would not seek the presidency again. He would go to Paris and end the war in Vietnam. Well we were ecstatic.

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.

Terrorists destroy randomly.

In Cairo, these young men hanging around in the street, we're told these guys are lazy, they're uneducated, they don't care, they don't have any political instincts - just like the working class in America, apparently - and then suddenly what the hell happened? What was that? They changed the world by changing themselves. Now is that over? No. Is the civil rights movement over? No. These movements have not accomplished what they set out to accomplish.

I more or less shared the view that life should be lived.

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.