“三不知”的典故出自《左传》。公元前468年,晋国的苟瑶率兵攻打郑国,齐国为防止晋国强大,就派陈成子带兵援郑。有个名叫苟寅的部将报告陈成子说;“有一个从晋军来的人告诉我说,晋军打算出动一千辆战车来袭击我军的营门,要把齐军全部消灭。”陈成子听了,骂他说:“出发前国君命令我说:‘不要追赶零星的士卒,不要害怕大批的人马。’晋军即使出动超过一千辆的战车,我也不能避而不战。你方才竟然讲出壮敌人威风灭自己志气的话,回国以后,我要把你的话报告国君。”苟寅自知失言,于是感慨说:“君子之谋也,始中 ”Three do not know “ allusions from ”Zuo Zhuan.“ In 468 BC, Gou Yao of Jin dynasty led troops to attack Zheng and Qi to send Chen Cheng-zi to aid Zheng in order to prevent Jin from becoming powerful. One of the ministers named Gou Yin will report Chen Chengzi’s remark; ”One person from Jin Jun told me that Jin Jun intends to dispatch a thousand chariots to attack the camp of our army, Destroyed. “Chen Chengzi listened and scolded him:” Before departure, the monarch ordered me to say: ’Do not chase sporadic pawns and do not be afraid of a large number of people.’ ’Even if Jin forces dispatched more than a thousand chariots, You can not avoid without fighting .You just had to speak out the mighty enemy defeat their own ambitions, after returning home, I want to report your words to the monarch. “Gou Yin self-knowledge, then said with emotion: ” in