《晋书·列传·第四章》
过去漠宣帝评议赵充国的上疏，事情应验以后，责问那些持异议的人，都叩头谢罪，以此来堵塞异端。
昔汉宣帝议赵充国所上，事效之后，诘责诸议者，皆叩头而谢，以塞异端也。
Once, after the emperor had criticized a report by Zhao Chongguo and the facts had been borne out by developments, the emperor censured those who had differed from him. They all kowtowed and expressed their submission as a means of stopping further criticism.