《汉书·传·王莽传上》
宰衡的属员俸禄六百石，三公向宰衡奏报时自称 冒昧地说 。
宰衡掾史秩六百石，三公称 敢言之 。
Subordinates of the chief ministers with salaries of six hundred shi of grain would refer to themselves as presumptuous when submitting reports to the chief ministers and the Three Excellencies.