all through my childhood, my father kept from me the knowledge that the daily papers printed daily box scores, allowing me to believe that without my personal renderings of all those games he missed while he was at work, he would be unable to follow our team in the only proper way a team should be followed, day by day, inning by inning. In other words, without me, his love for baseball would be forever incomplete.

If you interview five people about the same incident, and you see five different points of view, it makes you know what makes history so complicated. Something doesn't just occur. It's not like a scientific event. It's a human event. So the dimensions of it will be seen differently by different people.

I think the most important thing I wanted to say at various times to Franklin and Eleanor Roosevelt was that it seemed so sad to me that - I really believe they loved each other and had a great deal of affection - but because of that early hurt in their marriage, there was a certain kind of distance from then on, until their deaths actually. So at times, I just wanted to push them together and say, "Come on, you guys! I know you love each other. This is crazy!"

Good leadership requires you to surround yourself with people of diverse perspectives who can disagree with you without fear of retaliation.

Where's the progress that we're going to see in Afghanistan? You have to keep public support both on the economy and the war or these things will really become troubling.

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.

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.