《三国志·魏书·任城陈萧王传》
 臣自从因罪返回封地，痛心疾首，反省自己的罪过，每天到中午才吃饭，半夜才就寝。
臣自抱衅归藩，刻肌刻骨，追思罪戾，昼分而食，夜分而寝。
Since I returned to the fiefdom because of my crimes, I have been heartbroken and introspected on my sins. I don't eat until noon each day, and I don't go to bed until midnight.