The green appeal of solar sailing - traveling by light, once chemical propellants have done their dirty job of orbital insertion - ought to be powerful.

One's politics are part of one even when one is writing. But if I want to say anything about the state of civil society, I will write an essay. The responsibilities you feel as a novelist are literary ones, I think, not civic ones. And I think politicians are interesting to write about.

I think that the worst form of naivete can be extreme cynicism. If you think that nobody comes to Washington to do any good whatsoever, that is almost as bad as being starry-eyed and thinking that they are all here to advance democracy.

I like writing dialog but don't think I'd be much good at a screenplay. I once had to write a treatment for a novel of mine - a condition of its being optioned by a movie producer - and I turned out something pretty lackluster. So my inclination would be to stay out of the way of an experienced screenwriter.