有唐一代，太宗的“贞观之治”，玄宗的“开元之治”，是颇为有名的。此二人能得史家如此赞誉，一个重要的原因就是持正而纳谏：持正，方有善谏之人；纳谏，便有了敢谏之士。作为太宗“人镜”的魏征，他上了很多奏疏，就是怕人主生出骄逸之心。这些谏疏，促成和完美了彪炳史册 The Tang generation, Taizong “Zhenguanzhizhi”, Xuanzong’s “Kaiyuan rule” is quite famous. One of the important reasons why these two people are acclaimed by historians is that they hold the position of accepting and giving advice: those who hold a correct attitude and those who are good and remonstrate themselves; As the emperor of “people mirror” Wei Zheng, he played a lot of playing sparse, is afraid of people born arrogant heart. These remonstrance, contributed to and perfect the history of the world