《礼记·明堂位》
因为这样，鲁国所用的是天子的礼仪，这件事已家喻户晓，流传久远了。
是故，鲁，王礼也，天下传之久矣。
Because of this, the etiquette used in the country of Lu is the etiquette of the emperor. This matter has been a household name for a long time.