He (William Howard Taft) had little patience with the unconscious arrogance of conscious wealth and financial success.

What interested me most about the Kennedys was the family situation. Somehow, they had created this family that lasted over time, they had a sense of connection to one another. Especially now, when people are spread all over the country and they don't see grandparents and parents, this family bonded together.

If your ambition comes at the price of an unbalanced life, that there's nothing else that gives you comfort but success, it's not worth it.

The White House is such an extraordinary, simple, beautiful place. It's an extraordinary piece of our history, because it is the one thing that binds our country together. We don't have a king obviously, but we have this president, and the fact that almost all of them have lived in the same place, and so much history took place in those rooms. You can't help but feel awe-inspired by being there.

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.

(from John Hay's diary) “The President never appeared to better advantage in the world,” Hay proudly noted in his diary. “Though He knows how immense is the danger to himself from the unreasoning anger of that committee, he never cringed to them for an instant. He stood where he thought he was right and crushed them with his candid logic.

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.