It's this thing that's going on all the time - aging. Paul Auster quotes the poet George Opren on growing old: "What a strange thing to happen to a little boy." Which I think is so profound.

I would agree on the aging thing. Because, at a certain point, once you start noticing it, it is your subject. And I know young that people, when they get to 30, say, "Oh, I'm so old." But actually, around 50, you do become conscious of it.

Each of my book arrives at a form and a style that is appropriate to the subject.

All sorts of things can keep one awake. But as you get older - this is what the stroke thing really brought home to me - this thing that I never paid attention to: my brain. I've always been conscious that, of course, after a night of getting stoned, my head would feel foggy; if I got drunk the night before I'd be hungover. But that was the extent of my concern about my brain. And then with the stroke thing, it made me realize, "God! That's my main source of income." So it relates actually to your other question about growing old.

Getting too much money too soon can be really bad. There's a balance to be kept - the right balance between new experience and a certain stability in one's life. I'm conscious of all these things in a way that, earlier on, I was only conscious of circumstantial stuff, like, money.

It's this thing that's going on all the time - aging. Paul Auster quotes the poet George Opren on growing old: "What a strange thing to happen to a little boy." Which I think is so profound.

These days any self-respecting exhibition of nude photos has to have pornographically explicit images to prove that they are works of art.