《三国志·蜀书·许麋孙简伊秦传》
过去孔子三次拜见鲁哀公，做了《三朝记》七篇，这是因为有些事不能保持沉默。
昔孔子三见哀公，言成七卷，事盖有不可嘿嘿也。
In the past, Confucius visited Duke Ai of Lu three times, and wrote seven articles of "Record of Three Audiences", which is because some things can't be kept silent.