《战国策·秦三·秦攻邯郸》
现在阁下虽然很得君王的宠信，但是君臣关系不能超过父子的骨肉至亲；而下级军官虽然身份微贱，总不会低于看门的老太婆。
今君虽幸於王，不过父子之亲；军吏虽贱，不卑于守闾妪。
Although your excellency is now much favored by the King, the king-vassal relationship cannot surpass that of father and son; and although the junior officers may be of low status, they will never be lower than the old lady who looks after the door.