在《孙子兵法》中,虽然过分强调了“用间”(间谍)的作用,但其指导思想还是有益的。他说:“故明君贤将,所以动而胜人,成功出于众者,先知也。先知者,不可取于鬼神,不可象于事,不可验于度,必取于人,知敌之情者也。”(《用间篇》)用白话来说,就是:“所以英明的国君、贤能的将帅,他们之所以一出兵就能战胜敌人,成就的功业超出众人,其原因就在于事先了解敌情。事先了解敌情的方法,不可用祭祀、占卜等向鬼神求得,不可同其他事物进行类比推测,不可用星宿运行的 In the Art of War, although the role of “interpersonal” (spy) is overemphasized, its guiding ideology is still beneficial. He said: “Therefore, the wise men will be, so the winner, success out of the crowd, the prophet also. The prophet, not delusional, can not be like a thing, In the vernacular, it is: ”Therefore, the brilliant monarchs, the virtuous generals, the reason why they can defeat the enemy as soon as they send troops, and their accomplishments exceed those of others because of their prior Understand the enemy situation. Prior understanding of the enemy’s methods, can not sacrifice, divination, etc. to the ghosts and gods, not analogy with other things speculation, not available star operation