Happy ending are only a pause. There are three kinds of big endings: Revenge. Tragedy. Forgiveness. Revenge and Tragedy often happen together. Forgiveness redeems the past. Forgiveness unblocks the future.

The Anglo-American tradition is much more linear than the European tradition. If you think about writers like Borges, Calvino, Perec or Marquez, they're not bound in the same sort of way. They don't come out of the classic 19th-century novel, which is where all the problems start. 19th-century novels are fabulous and we should all read them, but we shouldn't write them.

Children, I suppose, are always unfinished business: they begin as part of your own body, and continue as separate as another continent.

To create a past that seemed authentic but would be a fiction, you need an invented language.

Now that physics is proving the intelligence of the universe what are we to do about the stupidity of mankind? I include myself. I know that the earth is not flat but my feet are. I know that space is curved but my brain has been condoned by habit to grow in a straight line. What I call light is my own blend of darkness. What I call a view is my hand-painted trompe-l'oeil. I run after knowledge like a ferret down a ferret hole. My limitations, I call the boundaries of what can be known. I interpret the world by confusing other people's psychology with my own.

In a vacuum all photons travel at the same speed. They slow down when travelling through air or water or glass. Photons of different energies are slowed down at different rates. If Tolstoy had known this, would he have recognised the terrible untruth at the beginning of Anna Karenina? 'All happy families are alike; every unhappy family is unhappy in its own particular way.' In fact it's the other way around. Happiness is a specific. Misery is a generalisation. People usually know exactly why they are happy. They very rarely know why they are miserable.

There are two facts that all children need to disprove sooner or later; mother and father. If you go on believing in the fiction of your own parents, it is difficult to construct any narrative of your own.