《晋书·列传·第九章》
撞智又说： 尧、舜、周公所以能招来忠谏，是因为他们恳切真诚之心显著。
褚复白曰： 尧、舜、周公所以能致忠谏者，以其款诚之心著也。
Zhuang Zhi again said: The reason why Yao, Shun, and the Duke of Zhou were able to attract loyal remonstrances was that their sincerity and truth were manifest.