What is education? Lee Hong-Woo and Chang Sang-Ho are typical researchers on educational concept. Lee suggests three concepts of education in his Concepts of Education and explains what is education in it. Chang explains that the education is different from the academic discipline in his Academic Discipline and Education. However, they propose different answers respectively for the same question. According to Chang, Lee has the reductionist disadvantage, which explains education through science. On the other hand, Chang explains education through the intrinsic rules of education. But from the Lee`s view, the intrinsic rules of education can`t separate from the science. An argument that makes someone`s mind like plato`s Idea can always interpret educational argument and it is exactly alike pedagogy. This difference of opinion Lee between Chang shows same difference interpretation of Durkheim and Dewey. So we try to examine Lee and Chang`s answer through their difference interpretation of Durkheim and Dewey.