《左传·襄公·襄公二十六年》
现在乌馀的城邑，都是侵夺来的，属于应该讨伐之列，而我们贪图它，这就没有资格作盟主了。
今乌馀之邑，皆讨类也。而贪之，是无以为盟主也。
Now that Wu Yu's city is acquired by invasion, it should be punished. We are greedy for it, which makes us unqualified to be the leader of the alliance.