《智囊(选录)·术智部·总序》
若不懂婉转，外物就会压制他；不懂隐匿，外物就会倾陷他；不懂诡谲，外物就会困厄他。
不婉者，物将格之；不匿者，物将倾之；不诡者，物将厄之。
If one does not know how to be tactful, external things will suppress him; if one does not know how to hide, external things will make him fall; if one does not know to be unpredictable, external things will make him suffer.