玄学之所以被称为“玄”学而不是别的什么学,这一事实本身就意味着其主题是“玄”。学界所确定的玄学主题“有无之辨”、“自然与名教之辨”等只不过是“玄”之主题在不同层面的展开。而从方法论、本体论和价值论三个层面揭示魏晋玄学的“玄”之主题,可以更好地展示其理论的中心指向。 The fact that metaphysics is called “metaphysics” rather than anything else means that its theme is “metaphysical.” The subject of metaphysics, “whether there is differentiation” or “differentiation of nature and nobility” as determined by the academic circles is only the subject of “metaphysics” at different levels. From the aspects of methodology, ontology and value theory, the theme of “Metaphysics” of metaphysics in the Wei and Jin Dynasties can be revealed, which can better demonstrate the central point of its theory.