Chinese mythology, folktales, and literature
Drawing on ancient examples, Sun Tzu states that recruiting highly intelligent insiders as spies secures remarkable feats. Intelligence work is the core of warfare, the fundamental basis for all military maneuvers.
The Master said:“How supremely wise was Shun!He loved to ask questions and was attentive to even the most ordinary words.He concealed what was evil and promoted what was good.Grasping the two extremes, he applied the Mean to the people.It was precisely this that made him Shun!”