A Quest into the Connotation of “Nature” in Zhang Zai’s Theory

Nature” is a universal concept in Zhang Zai’s system.Zhang Zai’s theory on “Nature” was (theorized) by animadverting on Buddhism and Taoism.In his theory,“Qi” becomes the original form of the world (because) of its inherent “Nature”.That’s to say “Nature” is the cause of “Qi”,moving and changing.This ability comes from its inherent “two ends” character.“Two ends” reacting on each other is the ultimate cause of all things coming into beings and changing. So it can be said that “Nature” is the internal essence of all existence.(Because) of their “Nature”,human beings and things come into beings and then change constantly.“Nature” is pure and (supernatural).It can be known,too.