《资治通鉴·齐纪·齐纪六》
太子太傅穆亮、少保李冲摘去帽子，伏地磕头谢罪，请求宽宥太子，孝文帝说： 你们谢罪，请求宽宥，是出于私情，而我在这里所要商议的却是国家大事。 大义灭亲 ，为古人所看重。
太子太傅穆亮、少保李冲免冠顿首谢。帝曰： 卿所谢者私也，我所议者国也！ 大义灭亲 ，古人所贵。
Imperial Tutor Mu Liang and Junior Guardian Li Chong took off their hats, kowtowed to the floor, and pleaded for clemency for the Crown Prince. Emperor Xiaowen said, "Your pleading for clemency is because of personal feelings, but what I am here to discuss is an important matter of state. Putting morality before personal relationships is what the ancients valued most.