... He had always rather liked emergencies. Other people's at any rate. They put your own problems into perspective. It was like being on a ferry. You didn't have to think about what you had to do or where you had to go for the next few hours. It was all laid out for you.

And Father said, "Christopher, do you understand that I love you?" And I said "Yes," because loving someone is helping them when they get into trouble, and looking after them, and telling them the truth, and Father looks after me when I get into trouble, like coming to the police station, and he looks after me by cooking meals for me, and he always tells me the truth, which means that he loves me.

If you enjoy math and you write novels, it's very rare that you'll get a chance to put your math into a novel. I leapt at the chance.

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.

Everyone has learning difficulties, because learning to speak French or understanding relativity is difficult.

A lot of roles for people with disabilities are quite patronising. It's a real pity when they are just used to give dull PC kudos to a drama, or when they're wheeled on in a tokenistic way without any real involvement in the plot.

Show me the artist anywhere who's had an utterly stable mental life, and I'll buy you hot dinners for the rest of your life.