The ethical and moral feature of Confucian philosophy highlight the value orientation of Individual nature and temperament self-cultivation in Mencius's Philosophy of the Mind. Every Confucianist in Song dynasty, especially some profound and representative scholars such as Zhu xi, Lu Jjiuyuan and Wang Yangming believed that Mencius's Philosophy of the Mind laid stress on Individual nature and temperament self-cultivation, advocated to devise conscience and instantly presented self-cultivating effort. According to every ancient Confucianist's study on the Mencius, Wang Fuzhi thought that every ancient Confucianist's viewpoints on the substance of Mencius's Philosophy of the Mind were somewhat biased, which were just referred to: the theory of nature and temperament cultivation, and laid stress on Individual moral self-cultivation. Wang Fuzhi disputed over every ancient Confucianist's viewpoints on the substance of Mencius's Philosophy of the Mind: to devise conscience and to make efforts to be inner sage, furthermore he proceeded a debate and corrected the Confucianist's core substances about nature and temperament. That is to say, the core of Mencius's Philosophy of the Mind is the learning of external king (political philosophy about governing the world), which has great effect just like the The Great Learning, both the core of Mencius's Philosophy of the Mind and the theory in the The Great Learning: administering a country and making the world peaceful achieved the same good results by different ways, the core of Mencius's has the same ultimate value orientation as the three cardinal principles and eight clauses in the The Great Learning contain. Wang Fuzhi considered the Mencius's Philosophy of the Mind should not be simply stipulated as individual moral cultivation, the core of which is supposed to be stipulated as the combination of individual moral cultivation and political philosophy of governing the world, namely, perfect combination of the interior cultivation and the exterior action.