《北史·列传·卷三十五》
再则，高车国的人马虽然很多，国君却很愚蠢软弱，上边不能驾驭下边，下边也不服从上边，整个国家只靠掠夺来存在。
又高车士马虽众，主甚愚弱，上不制下，下不奉上，唯以掠盗为资，陵夺为业。
Moreover, although the Gaoju people have many horses and soldiers, their leader is extremely stupid and weak, and he can neither control his subordinates nor have them obey him. The entire country relies on raiding to survive.