《孟子·公孙丑章句下·第八节》
燕王子哙不应该把燕国轻率地交给别人，相国子之也不应该从子哙手中接受燕国。
子哙不得与人燕，子之不得受燕于子哙。
King Kuai of Yan should not have lightly handed over Yan to another person, and Prime Minister Zizhi should not have received Yan from Zi Kuai.