If there is a series of attacks like that or, God forbid, if ISIS is really sending soldiers across Europe and maybe across the world for a barrage of these things, then the political climate is revolutionized here. And maybe the [Donald] Trump speech will look like a precursor to a climate that we're all about to walk into.

Basically, global capitalism, basically to support it, or is it to be opposed? Is international order to be supported, or is it to be opposed? Republicans have taken a very clear line. Democrats can have a different version of the line, or they can just say, no, we are the party of international peace and activism, and we're the party that's going to have a civilized capitalism.

Empathy makes you more aware of other people's suffering, but it's not clear it actually motivates you to take moral action or prevents you from taking immoral action.

I could tell you that when you have trouble making up your mind about something, tell yourself you'll settle it by flipping a coin. But don't go by how the coin flips; go by your emotional reaction to the coin flip. Are you happy or sad it came up heads or tails?

I don't think history will ever be a science because history will never be reduced to law-like behavior. People are to unpredictable.

It's hard to imagine a party that is not corrupted by hatred.

What family you were born into matters so much more than it did before in a perverse way.