《后汉书·列传·郎顗襄楷列传下》
郎顗说道： 臣听说明王圣主好听其过失，忠臣孝子言无隐情。
顗对曰：臣闻明王圣主好闻其过，忠臣孝子言无隐情。
Lang Yi said: I heard that good kings and holy leaders like to hear about their faults, and loyal ministers and filial children speak without hiding their true feelings.