?Sunghakshipdo (聖學十圖): Ten Showings of Completing Study?, ?Chunmyungdosul (天命圖說): Revealing the Destiny from Heaven?, ?Joojaseojulyo: Compilation of Chu-tzu’s Works, ?Jasunglock (自省
錄): Self-reflection? are main four works of Toegye Yi Hwang. He
emphasized importance of describing Chu-tzu’(朱子)s works, and
picked important correspondences from Chu-tzu’s works to
compiled them into 20 books with interpretation and historical
investigation. Yi’s accomplishment was significant in studying
Chu-tzu in Chosun dynasty. Yi’s published ?Joojaseojulyo? to
complete his character. He tried to find the right way through
studying Chu-tzu, and sought to share his vision with the others
by studying his own books together. ?Joojaseojulyo? was published
mainly for education purposes. I analyzed purpose of publishing ?
Joojaseojulyo? and its educational implications focusing on prologue
of ?Joojaseojulyo?. ?Joojaseojulyo? has been underestimated,
perhaps because of stereotype that it was a ‘Compilation without
unique value’. I believe that this ?Compilation? is an essence of Yi’s
studies. As in the modern society, studies and actions are separated,
and education cannot influence character building and social
development, ?Joojaseojulyo? shows us the right direction of
education.