《资治通鉴·唐纪·唐纪九》
魏徵再次拜谢说： 突厥灭亡，海内承平，都是陛下的威德，我有何功德呢？ 
征再拜谢曰： 突厥破灭，海内康宁，皆陛下威德，臣何力焉！ 
Wei Zheng thanked him again and said: The demise of the Turks and the peace within the country are all due to Your Majesty's prestige and virtue. What功德 do I have?