One person looks around and sees a universe created by a god who watches over its long unfurling, marking the fall of sparrows and listening to the prayers of his finest creation. Another person believes that life, in all its baroque complexity, is a chemical aberration that will briefly decorate the surface of a ball of rock spinning somewhere among a billion galaxies. And the two of them could talk for hours and find no great difference between one another, for neither set of beliefs make us kinder or wiser.

Usually people look at you when they're talking to you. I know that they're working out what I'm thinking, but I can't tell what they're thinking. It is like being in a room with a one-way mirror in a spy film.

Stories about mental aberration and oddity only make sense in context. Just how do people live with someone who is peculiar, gifted, strange or alien? It's odd because there's a little part of me that wants to write about exotic, strange bizarre subjects. Instead, I've rather reluctantly realised that what I write about is families.

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.

Prime numbers are what is left when you have taken all the patterns away. I think prime numbers are like life. They are very logical but you could never work out the rules, even if you spent all your time thinking about them.

People say that you always have to tell the truth. But they do not mean this because you are not allowed to tell old people that they are old and you are not allowed to tell people if they smell funny or if a grown-up has made a fart. And you are not allowed to say, 'I don't like you,' unless that person has been horrible to you.

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.