On buses and trains, I always think about the inexhaustible variety of human genes. We see types, and occasionally twins, but never doubles. All faces are unique, and this is exhilarating, despite the increasingly plastic similarity of TV stars and actors.

I'm more interested in books than people, and I always expect everybody else to be, but they're not.

Mine the long night The secret place Where lovers meet In long embrace In purple dark In silvered kiss Forget the world And grasp your bliss

There is a peculiar aesthetic pleasure in constructing the form of a syllabus, or a book of essays, or a course of lectures. Visions and shadows of people and ideas can be arranged and rearranged like stained-glass pieces in a window, or chessmen on a board.

What I need to write well is a combination of heat, light and solitude.

Don't you find it rather heavy, to have everything really in front of you – all the people who are going to matter, whom you haven't met yet, all the choices you are going to have to make, everything you might achieve, and all the possible failures – unreal now? The future flaps round my head like a cloud of midges.

Lists are a form of power.