《左传·定公·定公四年》
不这样，文王、武王、成王、康王的兄长还很多，而没有得到这些赐予，就因为不是崇尚年龄。
不然，文、武、成、康之伯犹多，而不获是分也，唯不尚年也。
If not so, there were still many elder brothers of King Wen, King Wu, King Cheng and King Kang, but they were not so awarded because seniority was not emphasized.