《后汉书·列传·左周黄列传》
又黄门协邪，相互结党，自从梁冀擅权，前后相从，朝夕出谋划策，同恶相济。到梁冀当诛之际，本来无计可施的，却记了梁冀的罪恶，以邀爵赏。
琬退而驳议之曰 昔周公营洛邑以宁姬，光武卜东郡以隆汉，天之所启，神之所安。
And the eunuchs were evil and formed cliques. Since Liang Ji was powerful, they followed him and offered suggestions day and night, helping each other. When Liang Ji was about to be executed, they had no plan at all, but they remembered Liang Ji's crimes and begged for titles and rewards.