Long experience had taught me that absolute silence is the best way. Say something, and it can be misheard. Misunderstood. Misinterpreted. It can get… - Lee Child

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.

"Cold?" Reacher said. "This is nothing."

He was keeping track of time. It was nearly two hours since he had last looked at his watch, but he knew what time it was to within about twenty seconds. It was an old skill, born of many long wakeful nights on active service. When you're waiting for something to happen, you close your body down like a beach house in winter and you let your mind lock onto the steady pace of the passing seconds. It's like suspended animation. It saves energy and it lifts the responsibility for your heartbeat away from your unconscious brain and passes it on to some kind of a hidden clock. Makes a huge black space for thinking in. But it keeps you just awake enough to be reach for whatever you need to be ready for. And it means you always know what time it is.