《智囊(选录)·上智部·裴光庭》
裴光庭说： 天子封禅，是向天下表明治国的成功。现在将要宣告成功的时候却害怕突厥的入侵，这就显示不出大唐的强盛和功德了。 
光庭曰： 封禅，告成功也，今将升中于天而戎狄是惧，非所以昭盛德也。 
Pei Guangting said: The emperor enshrining Zen is to show the world the success of the Ming Dynasty. Now when we are about to declare success, we are afraid of the invasion of the Turks, which does not show the strength and merit of the Tang Dynasty. 