In America one drop of black ancestry makes you black.

The first slave came to Florida in 1526. The first one we know by name, Esteban, which means Stephen, came a couple of years later. So, we start with the stories of Juan Garrido and Esteban to show that African-American people have been here a century longer than anyone thought, and that the diversity we see in the African-American community today has existed since the beginning.

We can see that the complexity we witness inside the African-American community today has always been there. Black people were just as noble and just as ignoble as anybody else.

My brother and I had a really privileged relationship with my parents... They treated us like adults.

I would like to do a series about sequencing the human genome, and also analyze more human diversity among other ethnic groups - a 'Faces of America 2.'

Lincoln would love the fact that Obama is such a great conciliator, trying to transcend ideology.

It's fascinating how life works.