君王的开明或昏庸，百姓人心向背不是历史的决定性因素。为啥要任用善于敛财的小人？为啥要设置节度使？因为管理效率。相对于隋和宋，唐的管理制度一直是粗线条的自由放任。
The openness of a king or the drearyness of the people's hearts and minds is not a determining factor in history. Why appoint a small man who is better than a rich man? Why should he set up a conservator? Because of the efficiency of his management. Don's management system has always been open to rough lines.