The brain is a body part too; we just know less about it.

When we were working on immigration reform and there was a young Latino man, young immigration activist here who, in the Roosevelt Room, refused to shake my hand.He made a point of saying, "I can't shake your hand; you're deporting too many people." And I just said to him, "Young man, I'm glad that you feel so passionately about this issue, but you're with the president right now in the White House. You've got to think about what's going to be most effective in getting what you need, what you're trying to accomplish. Because this may not be your best strategy."

Iran's nuclear program . . . there was going to be a time limit . . .

The emotions between the races could never be pure; even love was tarnished by the desire to find in the other some element that was missing in ourselves. Whether we sought out our demons or salvation, the other race would always remain just that: menacing, alien, and apart.

Ask Osama bin Laden and the 22-out-of-30 top al-Qaida leaders who've been taken off the field whether I engage in appeasement. Or whoever is left out there, ask them about that.

Now, in practice, in daily social interactions, etc., there may be all kinds of biases and prejudices that are unspoken, that people aren't aware of, that affect who's hired, and who gets loans, and how kids are treated in school. But it's a powerful thing if you have on your side an idea that the overwhelming majority of people believe in because that's how you can build a consensus that's lasting.

What we've seen at least since 1979 is Iran making constant, calculated decisions that allow it to preserve the regime, to expand their influence where they can, to be opportunistic, to create what they view as hedges against potential Israeli attack in the form of Hezbollah and other proxies in the region.