《北史·本记·卷十二》
自古皇王，何尝不留意，所以没有在这里定都，是有原因的，或者因为九州未统一，或因为府库中资财困乏，建造洛都的想法，因而未能顾及。
自古皇王，何尝不留意，所不都者，盖有由焉。或以九州未一，或以困其府库，作雒之制，所以未暇也。
Since ancient times, which emperor or king has not paid attention to this? Therefore, there must be a reason why they did not establish their capital here, perhaps because the Nine Provinces had not been unified, or because the treasury was depleted, and so they could not take into account the plan to build the capital in Luoyang.