As soon as you move through the hospital doors you've removed yourself from real life. From the world we know. It's an alien world. Just enter those gates and you are in alien territory.

Once you start on an idea it proliferates in itself.

I dare say you believe I'm going to die. I bet you don't believe you're going to die. You know it, but you don't believe it. Imaginatively, I think we find it impossible to believe we don't exist.

It's hard for us sophisticates to believe, but the people my parents worked for were good people. They were socialists of the heart. They were Scottish upper class. I don't think they had political theories in the way my lefty friends in New York do but they did all the things that socialists do. My mother was the Jewish cook from Vienna and they would say, "Come and have dinner with us." I spent weekends with them. Who does that? This is Utopia.

I've often tried to describe how memory works. I've suggested this to students, and told them to close their eyes and try to remember what I look like. Then I ask them if they remember what I look like. But when you open your eyes you will be surprised how different what you thought I looked like is to what I actually look like. Because the imagination is a different raw material from actual vision. Memory is very different from the thing itself.

I imagine witches to be people who sit around like my witty grandmother, people who are injustice collectors or humiliation collectors. I choose to imagine that's what a witch is. The reason witches are so evil is because they're so unhappy and so hurt.

I'm very moved and very excited. And it just seems to me here are houses and trees and streets that feel so different from New York. I feel very attached to London; I love it.