《左传·宣公·宣公十二年》
听到两位先君来往在这条道路上，就是打算教导和安定郑国，岂敢得罪晋国？
闻二先君之出入此行也，将郑是训定，岂敢求罪于晋。
Hearing that the two previous lords came and went on this road, was the plan to teach and pacify the State of Zheng, how would I dare offend the State of Jin?