The 48 Laws of Power

Sun Tzu and the ancient Chinese, doing something extraordinary had little effect without a setup of something ordinary. Refusing to follow common patterns will make it hard for people to guess what you'll do next. Get them to reveal their intentions if you have reason to suspect that a person is telling you a lie. This will give him courage to go on, he will become more vehement in his assertions, and in the end betray himself.