《管子·幼官》
第八次会集诸侯下令说：在视、言、貌、听方面可以立为表率而无邪僻行为的，在玄宫进行赏赐，由三公主持。
八会诸侯，令曰：立四义而毋议者，尚之于玄官，听于三公。
On the 8th occasion he assembled the feudal lords and commanded them, saying, “One who can be a model in his behaviour, expression, manner and deportment, with no actions or activities showing any depravity, shall be rewarded in the sovereign’s palace and the ceremony shall be presided over by the Three Ministers.”