Obamacare is woven into the fabric of health care. It's very hard to just rip it out, as Donald Trump sort of acknowledged with The Wall Street Journal.

People tend to marry people with similar-width noses, eyes similarly apart, with complementary immune systems.

One of the things this world is finding is that emotion is the basis of reason. We really have to trust our emotions, which are much smarter than our reason in some ways.

I'm a little uncomfortable with the idea of judges overruling presidents on national security matters.

It's just a lot safer to be an incumbent. So I think they have used the campaign finance reforms. They have passed laws that will help themselves stay in office. And I think that's one of the flaws that we do have in the system.

I wouldn't say philosophy and theology are dead. Brain science doesn't invent new philosophies but it helps remind us which of our existing philosophies are more true.

For those of us who believe in it, there has to be a movement that says, "We still believe in trade. We still believe in international engagement for America. But for those losers or those who are suffering, we've got your back."