180．决不被敌人误导

决不被敌人误导。智者断定的明智之事，蠢人从不会去做，因为他们不知道遵循合适的方法。审慎的人更不会遵循他人拟定甚而推行的计划，因为他们必须从多角度对事情进行探讨——反反复复地考虑到各个方面。人的判断是各不相同的；还未作出决定的人应考虑全面，多想想什么“有可能”发生，而不是什么“很可能”发生。

180．Never be guided by what your enemy has done

Never be guided by what your enemy has done. The fool never does what the wise judge wise, because he does not follow up the suitable means. He that is discreet follows still less a plan laid out, or even carried out, by another. One has to discuss matters from both points of view－turn it over on both sides. Judgments vary; let him that has not decided attend rather to what is possible than what is probable.