《文心雕龙·史传》
有时候一件事和两个人有关，同时记载难免有重复，而只写在一个人的纪传中又不够周全，这也是编排资料的不易。
或有同归一事，而数人分功，两记则失于复重，偏举则病于不周，此又铨配之未易也。
Occasionally an event relates to two or more individuals, and if it is recorded repeatedly this is bound to lead to duplication, while recording it under only one individual's biography will not be comprehensive enough: this is another of the difficulties of organizing source material.