《汉书·传·杨胡朱梅云传》
折断直士的节，封缄谏臣的嘴，大臣们都知道是错误的事，但不敢争言，天下的人都以怕说话招祸为戒。
折直士之节，结谏臣之舌，群臣皆知其非，然不敢争，天下以言为戒，最国家之大患也。
By suppressing righteous people and silencing advisors, other officials all know that it is the wrong thing to do, but they dare not argue. All people in the country learn from his example and refrain from speaking out for fear of inviting disaster.