People say that knowledge is power. The more knowledge, the more power. Which makes you just about the most… — Lee Child

People say that knowledge is power. The more knowledge, the more power. Suppose you knew the winning numbers for the lottery? All of them? Not guessed them, not dreamed them, but really knew them? What would you do? You would run to the store. You would mark those numbers on the play card. And you would win...Same for killing people.

Suppose you wanted to kill people. You would need to know ahead of time how to do it. That part is not too difficult. There are many ways. Some of them are better than others. Most of them have drawbacks. So you use what knowledge you've got, and you invent a new way. You think, and you think, and you think, and you come up with the perfect method. You pay a lot of attention to the setup. Because the perfect method is not an easy method, and careful preparation is very important. But that stuff is meat and potatoes to you. You have no problem with careful preparation. No problem at all. How could you, with your intelligence? After all your training? You know the big problems will come afterward. How do you make sure you get away with it? You use your knowledge. You know more than most people about how the cops work. You've seen them on duty many times, sometimes close-up. You know what they look for. So you don't leave anything for them to find. You go through it all in your head, very precisely and very exactly and very carefully. Just as carefully as you would mark the play card you knew for sure was going to win you a fortune.

The dynamics of the city. His mother had been scared of cities. It had been part of his education. She had told him cities are dangerous places. They're full of tough, scary guys. He was a tough boy himself but he had walked around as a teenager ready and willing to believe her. And he had seen that she was right. People on city streets were fearful and furtive and defensive. They kept their distance and crossed to the opposite sidewalk to avoid coming near him. They made it so obvious he became convinced the scary guys were always right behind him, at his shoulder. Then he suddenly realized no, I'm the scary guy. They're scared of me. It was a revelation. He saw himself reflected in store windows and understood how it could happen. He had stopped growing at fifteen when he was already six feet five and two hundred and twenty pounds. A giant. Like most teenagers in those days he was dressed like a bum. The caution his mother had drummed into him was showing up in his face as a blank-eyed, impassive stare. They're scared of me. It amused him and he smiled and then people stayed even farther away. From that point onward he knew cities were just the same as every other place, and for every city person he needed to be scared of there were nine hundred and ninety-nine others a lot more scared of him. He used the knowledge like a tactic, and the calm confidence it put in his walk and his gaze redoubled the effect he had on people. The dynamics of the city.