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.

With the rise of capitalism, it became more obvious that people pursue individual self-interest. The great nationalist in Italy, Giuseppe Mazzini, a wonderful philosopher, said that we need the nation. We need something that people can lean on, from which they can then reach out to the whole world. The idea of all humanity is too vague. It can't motivate human aspiration in a reliable way.

Choice matters. You might have the opportunity to eat a nutritious diet, though you might choose to eat a lousy diet. What matters is the opportunity.

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.

The humanities prepare students to be good citizens and help them understand a complicated, interlocking world. The humanities teach us critical thinking, how to analyze arguments, and how to imagine life from the point of view of someone unlike yourself.

We are lucky in the United States to have our liberal arts system. In most countries, if you go to university, you have to decide for all English literature or no literature, all philosophy or no philosophy. But we have a system that is one part general education and one part specialization. If your parents say you've got to major in computer science, you can do that. But you can also take general education courses in the humanities, and usually you have to.

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.