You can say I had a severe case of 'Roots' envy. I wanted to be like Alex Haley, and I wanted to be able to... do my family tree back to the slave ship and then reverse the Middle Passage, as I like to put it, and find the tribe or ethnic group that I was from in Africa.

So when you do your family tree and Margaret Cho does hers, and... Wanda Sykes and John Legend... we're adding to the database that scholars can then draw from to generalize about the complexity of the American experience. And that's the contribution that family trees make to broader scholarship.

There haven't been fundamental structural changes in America. There's been a very important symbolic change and that is the election of Barack Obama. But the only black people who truly live in a post-racial world in America all live in a very nice house on 1600 Pennsylvania Avenue.

It's very lonely being a prominent black intellectual at an institution where you're the only prominent black intellectual. That was the model that was followed in the late 60s when black studies started. You'd get one here and one there and one here, like Johnny Appleseed.

Learning to sing one's own songs, to trust the particular cadences of own's voices, is also the goal of any writer.

My father lived to be 97 and played bridge every day up to the end, so I've got a 50 percent chance of living a long life like him.

In the old days, you lived in one neighborhood, you knew all your neighbors and your daughter married the guy next door. That was social and economic progress. That model is gone now. We also had a world order that was fraught but fairly stable.