Abstract
A controversy of the Perception is focused on the Mind-Nature relation by Confucian Scholars in 18th century Joseon Dynasty. Chang-Hyup Kim [金昌協], especially, asserted that the Perception should be the unique side of Mind, because the Wise [智: the Mind of Judgment, remarkably about the righteous or not] is one aspect of the Nature. He needs to define the category of Wise and Perception, because the existing definition of Wise as an unprocurable activity of Mind. That might bring a confusion of concepts though The Mind and Nature, in his view. More over he added the essential aspect of Perception to real activity of Perception, and in this point of view, the position of Mind is important to the process of consolidating into Nature. Therefore he asserted that we should perceive the Nature, the essence, in the side of Mind [卽心指性]. This vision of the aim to Nature in the point of Mind, which was reinvestigation of Neo-Confucianism and this was succeeded to the general with academic traditional of Nak School [洛學].