The value that I found in interviewing was for an educational experience, just to know that history itself is subjective, that you can't say, "It happened." Do the best you can with what you think happened, but a lot of other people are going to see it happening differently.

Many kids think unless they go to one of these great Ivy League schools, which I was lucky enough to go to later, that they won't get the same kind of learning. But I learned just the opposite lesson; that my best teachers were not at Harvard University.

Even though Lyndon Johnson's presidency was in many ways scarred forever by the war in Vietnam, and destroyed in a lot of ways, he - as a character - was even larger than his presidency. Being able to get to know him well, that firsthand relationship with this large character, I think is what drew me to writing books about presidents.

When I look at Franklin Roosevelt's leadership, I think the most important quality he had during the Depression and the war was this absolute confidence in himself, in his country, really in the American people. He was able to exude that confidence and almost project it.

I think confidence comes from doing something well, working at it hard, and you build it up. It's not something you're born with. You have to build the confidence as you go along.

An adult friend of Lincoln's: "Life was to him a school.

Washington was a typical American. Napoleon was a typical Frenchman, but Lincoln was a humanitarian as broad as the world. He was bigger than his country - bigger than all the Presidents together.