《明史·志·卷四十九》
十六年，以宋讷为祭酒，敕令告谕他说： 太学是天下贤阗，礼义从那里生出，人才从那里兴起。
十六年，以宋讷为祭酒，敕谕之曰： 太学天下贤关，礼义所由出，人材所由兴。
In the 16th year, Song Na was appointed as an official in charge of sacrifices, and the emperor ordered him to announce: The Imperial College is the place where talents gather in the world, where etiquette and principles are born, and where talents emerge.