《后汉书·列传·党锢列传》
桓帝时，常常发生灾异，下诏广泛地征求直言，刘儒密上十条，极言朝廷的得失，忠心耿耿，说得十分恳切。
桓帝时，数有灾异，下策博求直言，儒上封事十条，极言得失，辞甚忠切。
During the reign of Emperor Huan, disasters occurred frequently, and an imperial edict was issued requesting the submission of candid advice, so Liu Ru secretly submitted ten articles, speaking candidly about the gains and losses of the court, with utmost loyalty and sincerity.