This article is undertaken with the focus on uniqueness of Yi-hwang philosopy, such as, the active volunary intent of principle following the principle force theory and, 'material force theory' beyond the general provisions of no-sentiment, no-manipulation and no understanding in principle concept by the Confucius scholars in the Song Dynasty including Joo-hee. Yi-hwang emphasized the activeness and reaction of principle to recognize the direct action and mobility on principle as presented to have no-shape and no equivalence in general under the Confucianism, and it also emphasizes the Theory of the mutual stimulation of principle and material force as it is possible for reaction of principle in principle and material force and lijado. As a result, under the point of view of principle and material force through the periodic principle and time are classified as clue and emotion, intrinsic nature and temperament, human nature and right way of nature. This ideology of Yi-hwang is expressed in mentality as the ideal of 'rizongicheon' and as a way of striving for 'absolute line' in accordance with the value position of principle, it displays the reasoning theory in asserting the principle under the existence theory and cultivation theory that strongly presents the value striving nature under the value theory. Therefore, his principle value point based on Yi-hwang's mutual stimulation of principle and material force emphasizes the 'sunseon' of human nature as the main body of ethics to have the learning on the basis of 'Goegyeonggungri' to form the relationship of practice and duplicity. Lee Hwang's sense of values that Looking at the point of view of RIBAL