It's commonly said that people who've been ill in childhood and who've had an upset education never really regret that they do. It means that you don't look at the world in the way that other people do, and if you were inclined to be a writer, that's a help.

Men killing other men really is an extraordinary phenomenon. Why does it happen? And how long has it gone on? And have the motives changed?

The great men of power who seek to change the nations they belong to usually are pretty terrible people.

It's a necessary quality of a diplomat or a politician that he will compromise. Uncompromising politicians or diplomats get you into the most terrible trouble.

The Islam of the 18th, 19th and first half of the 20th century was a poor thing. Nobody bothered about it. Islam was that funny sort of pure system of beliefs that depressed people in the Middle East held as their religion.

We saw the children and the women with their babies and then I heard the poouff — the flame had broken through the thatched roof and there was a yellow- brown smoke column going up into the air. It didn't hit me all that much then, but when I think of it now — I slaughtered those people. I murdered them.

Of whatever class or nation, however, all successful participants in the repetitive and unrelenting stress of aerial fighting came eventually to display its characteristic physiognomy: skeletal hands, sharpened noses, tight-drawn cheek bones, the bared teeth of a rictus smile and the fixed, narrowed gaze of men in a state of controlled fear.