Abstract EN:

Yi Ik studied classics and history all his life long. As a result he proposed many new interpretations of classics such as about jingtian or badao. Contrary to his new comprehension, his governing ideas are very similar to those of Zhu Xi. We can find his unique ideas in his discourses on political situation. He tried to justify his family and his faction so he declared their justice and morality. His conception of history is a result of such attitude. Contrary to studies so far, he accented value of moral. But his opened method influenced some of his disciples. They studied even works of Wang Yangming and catholic. The work of Yi Ik edited by them contains many new ideas. Many of them were executed because of their relation to catholic. The others wished to keep the value of neo Confucianism. They edited his work once again at the end of 19th century under the threat of foreign powers. So they deleted many of his works concerned with science and western. They had succeeded his legitimacy until the beginning of 20th century.