Any president that lies to the American people should have to resign.

I am fascinated by this partnership between Lady Gaga and Tony Bennett. It's magic and I love it.

If we disagree and I think I'm right, I just go ahead and do what I think is right. And then she tells me, 'I told you so.'

The real differences around the world today are not between Jews and Arabs; Protestants and Catholics; Muslims, Croats, and Serbs. The real differences are between those who embrace peace and those who would destroy it. Between those who look to the future and those who cling to the past. Between those who open their arms and those who are determined to clench their fists.

I'm sure I spent more time in Texas than anybody else who had run for President recently.

The Kyoto Treaty wasn't perfect, but we signed it, in fact, helped to draft it. And I'm very proud of it, it was the world's first commitment to doing something comprehensive on greenhouse gases and trying to reduce global warming before we do irreversible damage to many civilizations around the world.

I figured if I could get really good people who were going to be able to have a big impact in the world over the next decade to come together once a year for ten years and actually sign a pledge to take action themselves, if we did that every year for ten years we could do a lot of good in the world. That's the difference between my meeting and any other. If you don't want to promise to do something, don't come to my meeting, stay home.