《资治通鉴》记载，晋朝的惠帝司马衷自幼有些痴呆，整日和宫女们在一起玩耍，厌恶读书，过着农家伸手、饭来张口的生活；等到长大做了皇帝，更是昏胃愚昧，天天饮酒作乐，听靡靡之音。他从来未出过宫门，对世俗民情一窃不通，当时正值天下大乱，百姓流离失所，田地荒芜，饿死 “Mirror” records that Hui Di Sima of the Jin Dynasty had some dementia since childhood, playing with the palace ladies all day, disgusted reading, and lived farmer’s hands and rice to open his mouth; he waited until he became an emperor. It is even more sensational and ignorant, drinking and enjoying music every day. He had never been outside the palace door, and it was not easy for the secular people. At that time, the world was in chaos, the people were displaced, the fields were ridiculous and starved to death.