《左传·襄公·襄公二十二年》
由于大国的政令没有定准，国家和家族都很困乏，意外的事情不断发生，没有一天不恐惧，岂敢忘掉自己的职责？
以大国政令之无常，国家罢病，不虞荐至，无日不惕，岂敢忘职。
Since the great state's policies are not firmly established, both the country and the family are exhausted and unexpected events keep happening. There is not a day without fear, so how could I dare to forget my duties?