The Greek tragedies and comedies are like a roadmap to all the ways in which trying to live this rich, full life can go wrong. You could get into a war. You could find that you have members of your family on the wrong side of a political crisis. You could be raped. You could find that your child has gone crazy because of some horrible experience she's had.

I think that's what we really need in America, for people to hear each other. And I think philosophy could do a little bit better on that.

After all, the nation is not just an entity. It's a story. It's a story of what's salient, what brought us together, what we are willing to live and die for.

Knowledge is no guarantee of good behavior, but ignorance is a virtual guarantee of bad behavior.

There are no general-interest media that all of us can tap into. I'm not a good person to talk to about social media. I just avoid it. I'm suspicious also of the culture of venting. But the bigger question is, How can we in this media world have a genuine civic conversation? I mean, look at Franklin Roosevelt. He had these radio talks that all Americans listened to, and there was a common civic conversation that came out of it.

TV has a lot of problems, but I think the Internet and social media have a lot more. Under the cover of anonymity people say the most vicious things.

To be a good human being is to have a kind of openness to the world, an ability to trust uncertain things beyond your own control, that can lead you to be shattered in very extreme circumstances for which you were not to blame. That says something very important about the condition of the ethical life: that it is based on a trust in the uncertain and on a willingness to be exposed; it’s based on being more like a plant than like a jewel, something rather fragile, but whose very particular beauty is inseparable from that fragility.