《资治通鉴·晋纪·晋纪十二》
君王六宫的嫔妃，都是王公贵胄的子孙，怎能轻率地让婢女做她们的主人！
六宫妃嫔，皆公子公孙，奈何一旦以婢主之！
The concubines of the emperor's harem are all the daughters or granddaughters of princes and nobles. How can we so lightly allow a maid to become their master?