《资治通鉴·魏纪·魏纪九》
在家自由自在，无所忌惮，不知还有君上，这种情况不能长久忍耐，我如今要图谋取缔他。
此为自在，无复所畏，不可久忍，今规取之。
At home, he is free and uninhibited, fearless, and does not know that there is still a monarch. This situation cannot be tolerated for a long time. I will now plot to eliminate him.