I think here is the irony of American history. We don't have an established church. When you have an established church nobody takes religion as seriously as we do here. We have a free market in religion. The religious groups are competing with each other.

Lincoln sees slavery in some ways as a theft of labor. A slave is a laborer who is being denied the fruits of his labor.

Whatever Lincoln's racial views, which are not totally modern and egalitarian in many ways, he believes blacks should have this natural right to improve their condition in life and slavery denies that to them.

You pick up very well-known books on Lincoln [and] you will find almost no reference to his long-term belief in colonization. Why? Because it doesn't fit the image of the Great Emancipator. It doesn't fit the retrospective view we want to have of Lincoln as the man who was the moralist in politics, who came into office committed to ending slavery and waited to sign this document.

I admire Lincoln enormously and I think what's interesting about Lincoln is how he changes, it's not that he held the same view throughout his life.

There are those who view the abolitionists as just maniacs, apolitical fanatics who helped to cause the war, and Lincoln is the model of responsible statesmanship. I think that is a misconception, the idea that Lincoln knows what's possible and the abolitionists don't.

Lincoln is such an iconic figure in American history. He seems to reflect so many elements of American culture that we consider essential, whether it's the self-made man, the frontier hero, the politician who tries to act in a moral way as well as in a political way, Honest Abe. His career raises these questions that are still with us, the power of the federal government vis-à-vis the states, the question of race in American life, can we be a society of equals? There are so many issues central to Lincoln's career that are still part of our society one hundred and fifty years later.