《魏书·序纪》曰:“昔黄帝有子二十五人,或内列诸华,或外分荒服,昌意少子,受封北土,国有大鲜卑山,因以为号。其后,世为君长,统幽都之北,广漠之野,畜牧迁徙,射猎为业,淳朴为俗,简易为化,不为文字,刻木纪契而已,世事远近,人相传 ”Wei Shu sequence discipline,“ said: ”Xi Huang Di has twenty-five people, or within the list of China, or foreign sub-desert, Chang Yi young son, subject to the closure of the northern soil, the state-owned tremendous Xianbei, because of the ideals. Since then, the world has been a great leader, the north of both the government and the government, the vast desert, the livestock husbandry, the hunting industry, honest and simplistic, not literal, carved wood