一、“道”与“非常道”概念的界定“道”字,在《道德经》五千言中从统计学上讲,肯定是出现次数最多的。同时,从《道德经》理论结构和思想体系上讲,“道”也是理解全书的核心与关键,更是支撑全书的最重要的概念范畴。因此,对“道”字本 First, the definition of “Tao” and “extraordinary Tao” concept “Tao ” is surely the most frequent in the five thousand words of Moral Scriptures. At the same time, from the theoretical structure and ideological system of “moral classics”, “Tao” is also the core and key to understanding the whole book, and it is also the most important conceptual category that supports the whole book. Therefore, the “Tao” word