宋太祖赵匡胤曾于殿中与继位者勒石为戒:“一、保全柴氏子孙;二、不杀士大夫;三、不加农田之赋。呜呼!若此三者,不谓之盛德也不能。”其中第二条是告诫子孙重视文人,和士大夫共治天下。有宋一代,君主严守祖训,不杀士大夫及言事者,两千年帝制历史中绝无仅有。 Song Taizu Zhao Kuangyin once in the palace with the successor of the stone for the ring: First, to preserve the descendants of Chai; Second, not to kill the doctor; Third, without the endowment of farmland. Alas! If these three, not that Sidley No. “” The second of these is to warn offspring to attach importance to the literati and to govern the world. A generation of Song, the monarch to strictly observe the ancestors, not to kill the doctor and words, two thousand years in the history of monarchy.