I was joking earlier when I said that all writers are manic depressives, but it's a joke with a lot of truth behind it. For fiction writers and poets, too, there's something wrong with you and you do this art as a way of correcting it or addressing it in some way.

I've been in perfect health and perfectly happy all my life. I don't take any pills; I just get up, clean up after my wife, and start typing every day.

I'm extremely worried. I'm worried about the survival of our species, worried about what we're doing, worried about being Americans, worried about depletion of resources. On the other hand, we are trying. We are trying to understand our impact on the environment.

I'm pretty hardcore. I stick exactly to what I'm doing. So I write a novel in one period, and then I'll write stories in another period. I only work on one thing at once, because I'm afraid that I wouldn't finish what I'd started.

What I'm doing is exploring things. This is why I'm a fiction writer rather than an essayist or a politician or whatever. I just gather material and find a scenario, and see where it takes me. I don't have a plan.

The reason we love nature is because it's fascinating and we love all the creatures, but if you watch any nature film, there's always a lesson: "the creatures are all dying and life sucks." The same is true of literature.

Especially students. I love to turn them on to a story. Some of them have to go see me as an assignment, like kids from the schools in New York will go to the Y. I want them to know why I love this and why they should too.