志书要写出“树叶”各自的特点步进，牛俊峰不记得是出自哪位学者之口了，有一句富有哲理且很通俗的话：世界上并没有完全相同的两片树叶。其哲理性就在于：因为普遍存在即给人感觉是平平常常的许多事物，虽然其表象大体相同，但细分起来都有差异。毛泽东思想认为，差异就... The book will write about the respective characteristics of the “leaves.” Niu Junfeng does not remember which scholar came from his mouth. There is a philosophical and very popular saying: there are not exactly two leaves in the world. Its philosophical nature lies in the fact that, because ubiquity has many things that give people a sense of commonplaceness, their appearances are generally the same, but their subdivisions are different. Mao Zedong Thought, the difference is ...