《韩非子·难二》
现在桓公掉以轻心地处在管仲之上，这就好比简公掉以轻心地处在田常之上，桓公又很危险了。
今桓公以易居其上，是以简公之易居田常之上也，桓公又危矣。
Now Duke Huan has placed himself above Guan Zhong without taking proper precautions, which is comparable to Duke Jian placing himself above Tian Chang without taking proper cautions, so Duke Huan is in danger again.