When I was writing for children, I was writing genre fiction. It was like making a good chair. However beautiful it looked, it needed four legs of the same length, it had to be the right height and it had to be comfortable.

I don't mean that literary fiction is better than genre fiction, On the contrary; novels can perform two functions and most perform only one.

Books are like people. Some look deceptively attractive from a distance, some deceptively unappealing; some are easy company, some demand hard work that isn’t guaranteed to pay off. Some become friends and say friends for life. Some change in our absence - or perhaps it is we who change in theirs - and we meet up again only to find that we don’t get along any more.

If one book's done this well, you want to write another one that does just as well. There's that horror of the second novel that doesn't match up.

And I go out of Father's house and I walk down the street, and it is very quiet even thought it is the middle of the day and I can't hear any noise except birds singing and wind and sometimes buildings falling down in the distance, and if I stand very close to traffic lights I can hear a little click as the colors change.

People think that alien spaceships would be solid and made of metal and have lights all over them and move slowly through the sky because that is how we would build a spaceship if we were able to build one that big. But aliens, if they exist, would probably be very different from us. They might look like big slugs, or be flat like reflections. Or they might be bigger than planets. Or they might not have bodies at all. They might just be information, like in a computer. And their spaceships might look like clouds, or be made up of unconnected objects like dust or leaves.

Use your imagination and you'll see that even the most narrow, humdrum lives are infinite in scope if you examine them with enough care.