《史记·七十列传·乐毅列传》
等到民心涣散，狱中的囚犯纷纷逃出，国家已不可救药，然后两位先生才辞官隐居。
及民志不入，狱囚自出，然後二子退隐。
By the time the people's hearts had scattered, and the prisoners in jail had escaped, the nation was beyond saving, and only then did the two teachers resign and retire.