Wang Yangming’s Doctrine of the “Unity of Knowing and Acting” in the Light of Kant’s Practical Philosophy

Wang Yangming’s doctrine of the “unity of knowing and acting” (zhi xing heyi 知行合一) can be traced back to Mencius’s theory of “original knowing” (liangzhi 良知). Similarly, Kant discussed the relationship of theory to practice on three different levels (morality, the law of the state, and international law) in his article, “On the Common Saying: This May Be True in Theory, But It Does Not Apply in Practice.” Kant proposed the unity of theory and practice on the level of morality. So, this article uses Kant’s related concepts of theory and practice to interpret Wang’s doctrine of the “unity of knowing and acting” with the aim of clarifying some misinterpretations of it. Thereby, I argue that, although Wang Yangming put forward the doctrine of “the unity of knowing and acting” at a different time than his doctrines of “heart-mind is principle” (xin ji li 心即理) and “the extension of original knowing” (zhi liangzhi 致良知), these three doctrines are logically interconnected.