Writing is akin to method acting. Before the writer can render a fully convincing world, he or she must inhabit that world, and every major character who lives there. I'm not suggesting that one always has to go this far. But I truly believe what makes the setting for my novels come alive is that I've lived there first.

The business of writing is empathising with situations that aren't your own.

The writer must always leave room for the characters to grow and change. If you move your characters from plot point to plot point, like painting by the numbers, they often remain stick figures. They will never take on a life of their own. The most exciting thing is when you find a character doing something surprising or unplanned. Like a character saying to me: ‘Hey, Richard, you may think I work for you, but I don’t. I’m my own person.’

Before Bin Laden did everything but advertise. Yet he had to blow up the Twin Towers just to get the attention of anyone outside the intelligence community. So what did we do? We invaded the wrong country, killed the wrong madman, and too often used the wrong interrogation techniques on the wrong people-all because our leaders lost contact with the truth.

Writing seems like the only job where what you think and feel really matters.

Aggressiveness is good in a combat leader. Combining that with ambition and insecurity becomes more problematic.

Writing is rewriting. A writer must learn to deepen characters, trim writing, intensify scenes. To fall in love with the first draft to the point where one cannot change it is to greatly enhance the prospects of never publishing.