I don't think the same curriculum fits every student body.

Harvard has something that manages, I think, to provide a lot of options for students, but still fairly prescriptive about the kinds of subjects that the courses ought to cover.

I do worry a lot about the time it takes for people to get a PhD, about the difficulty of finding employment, about the difficulty of getting tenure, and generally about the perception that undergraduates have, that this is a very high-risk career to get started.

There are limits, after all, to the idea of limits.

I don't really usually push an agenda, and I don't feel that my main job is to persuade people of something. My main job is to help them think about something.

If time is a staircase, reality is a Slinky. Decades can be parsed. Television, frequently accused of destabilizing life, is actually what stitches the segments together.

One of the oddities about responses that you get to what you write, if you get a fair number of them, is that people have very different ideas of what you said.