《宋书·志·卷十二》
三王的时代已经过去了，史官负责相应的工作而废弃了专职的官员，所以孔王以《春秋》的正确来指明掌管历法的人的过错。
三王既谢，史职废官，故孔子正《春秋》，以明司历之过。
The era of the three kings has passed, and the historians were responsible for the corresponding work and abolished the full-time officials, so King Kong used the correctness of "Spring and Autumn" to indicate the mistakes of the person in charge of the calendar.