Those who believe in climate change, as I do, I think it's also fair to say that they are more receptive to confirming evidence than disconfirming evidence. They happen to be right, but their motivations are in play also.

A program that saves young people produces more welfare than one that saves old people.

If you take anything that succeeded, just imagine it succeeding 10 years before or 10 years after, you could almost always make, with the same plausibility, the "it fit the times" argument.

Once we know that people are human and have some Homer Simpson in them, then there's a lot that can be done to manipulate them.

I think it's a very firm part of human nature that if you surround yourself with like-minded people, you'll end up thinking more extreme versions of what you thought before.

I started to read as obsessively about Star Wars as I once did about Kant - and still do about behavioral economics and behavioral psychology.

I think President Barack Obama has been an extraordinarily successful president, and that this period will record that with a bunch of exclamation points. But obviously not everybody thinks that.