I think that most of my books are part of some process of self-education, often about the places I go to. Most of all, they are about the peculiar tension between institutional loyalty and loyalty to oneself; the mystery of patriotism, for a Brit of my age and generation, where it runs, how it should be defined, what it's worth and what a corrupting force it can be when misapplied. All that stuff is just in me and it comes out in the characters. I don't mean to preach, but I know I do, and I'm a very flawed person. It's quite ridiculous.

Let's die of it before we're too old.

I mean, I'm in the business of storytelling, not message making.

There will be no war, but in the pursuit of principle no stone will be left standing.

It's easy to forget what intelligence consists of: luck and speculation. Here and there a windfall, here and there a scoop.

I grew up in a completely bookless household. It was my father's boast that he had never read a book from end to end. I don't remember any of his ladies being bookish. So I was entirely dependent on my schoolteachers for my early reading with the exception of The Wind in the Willows, which a stepmother read to me when I was in hospital.

I was quite able at the insignificant work I did in MI6, but absolutely dysfunctional in my domestic life. I had no experience of fatherhood. I had no example of marital bliss or the family unit.