I'm not sure Lincoln would fare well if he were a presidential candidate today.

I'm not sure Lincoln would fare well if he were a presidential candidate today.

In Lincoln's day a President's religion was a very private affair. There were no public prayer meetings, no attempts to woo the Religious Right. Few of Lincoln's countrymen knew anything at all of his religious beliefs.

The big biography of Lincoln necessarily had to do so much with his political career, his ambitions, his accomplishments in public, with less time to spend on his private life, his inner life, and I thought this might be a way of getting at that.

At the beginning, Lincoln was so inexperienced he had reverence for military expertise, not realizing that there wasn't any military expertise, that the most anybody had commanded up to that point had been somebody, some troops in the Mexican War, and it had been years ago.

The more I have studied Lincoln, the more I have followed his thought processes, the more I am convinced that he understood leadership better than any other American president.

I was able to sit at Lincoln's side and see how he thought and how he acted, and how he felt about what was going on around him. I felt the pressures that were on him. You can see what people were writing to him, how they were nudging him.