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.

There's something so remarkable in the intensity of taking care of somebody who can't take care of him or herself. And then watching that little person bloom into adolescence.

You cannot live a political life, you cannot live a moral life if you're not willing to open your eyes and see the world more clearly. See some of the injustice that's going on. Try to make yourself aware of what's happening in the world. And when you are aware, you have a responsibility to act.

We should open our eyes, see what's in front of us, and act.

Now in my view, if you were to line up the Presidents in the order of who made the greatest accomplishments, you'd put Lyndon Johnson in that arena with both Roosevelts probably, and [Abraham] Lincoln and so on. But the idea that Lyndon Johnson was operating as a free agent and coming up with these ideas on his own is nonsense.

It wasn't [Barack] Obama per se; it was the feeling on the ground; it was seeing an old black woman in a wheelchair being wheeled by her son waving a big American flag, and then seeing a guy with his baby in his arms saying, "I didn't want her to miss tonight! I wanted to be able to tell her!" And to see all these people, a Hispanic cop dancing with an old white woman, wow! I mean, that's the world I want to live in, and because it's the world I want to live in, I had a hard time leaving.

I was terrible student at Michigan, terrible. Because there was too much else to do. I was learning form too many other sources to go to class.