Thousand years ago, we all descended from Africans who left the continent. Those ancestors, we will never know their name. We can go back 200 or 300 years and actually populate your family tree with real people who had names and documents. They had customs, characteristics that, unbeknownst to you, you have inherited. Almost through osmosis it has been passed down to you.

I thought, "why don't we be innovative and create something nobody had ever done before?" It was a huge hit and we immediately did a sequel with Chris Rock, Morgan Freeman, Tina Turner and Maya Angelou.

Instill respect for teachers.

For me, a garden is peace of mind. It immediately takes my mind off the thing I'm puzzling about in my work and gives me repose.

I want to be black, to know black, to luxuriate in whatever I might be calling blackness at any particular time, but to do so in order to come out on the other side, to experience a humanity that is neither colorless nor reducible to color.

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.

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.