《汉书·传·公孙刘田王杨蔡陈郑传》
古代和当今的坏人如同一丘之貉，杨惲妄引亡国的事例来诽谤当今朝廷，没有人臣的礼节。
古与今如一丘之貉。 惲妄引亡国以诽谤当世，无人臣礼。
The villains of ancient and modern times are as like as two peas in a pod. Yang Yun recklessly cited examples of ruined states to slander the current court, behaving without the manners of a subject.