《资治通鉴·汉纪·汉纪五十二》
董卓对长史刘艾说： 关东的叛军屡败，都畏惧我，不会有什么作为。
卓谓长史刘艾曰： 关东军败数矣，皆畏孤，无能为也。
Dong Zhuo said to his chief counsellor Liu Ai: "The rebels in Guandong have been defeated several times and are all afraid of me. They will do nothing.