I will get into trouble, I am sure, because since my Kate Middleton speech and before, certain papers were after me. I am not saying, however, that it would have been moral or right to assassinate Mrs. [Margaret] Thatcher, but I know it will be read that way. I know it will cause a problem.

If I am feeling broken, I can pick up one of [Ivy Compton-Burnett] books and the next morning I can write again. It puts my mechanism back.

Read Becoming a Writer by Dorothea Brande. Then do what it says, including the tasks you think are impossible. You will particularly hate the advice to write first thing in the morning, but if you can manage it, it might well be the best thing you ever do for yourself. This book is about becoming a writer from the inside out. Many later advice manuals derive from it. You don't ­really need any others, though if you want to boost your confidence, "how to" books seldom do any harm. You can kick-start a whole book with some little writing exercise.

In terms of essays, I would say Oliver Sacks. His breadth of hard knowledge and imagination and empathy seems to constitute the perfect mind to me.

Imagination only comes when you privilege the subconscious, when you make delay and procrastination work for you.

For historians, creative writers provide a kind of pornography.

I once stole a book. It was really just the once, and at the time I called it borrowing. It was 1970, and the book, I could see by its lack of date stamps, had been lying unappreciated on the shelves of my convent school library since its publication in 1945.