Gansong is a great scholar in Choson dynasty middleages. He was born in Haman county Kyungsang province depend in Nammyung school. However, He was educaded by three scholars belong to Tygae school from young age. Because his learning and personality was influenced from them strongly. especially from Yuheon. But he cannot help belonging to Nammyung school, for many Nammyung's disciple have resided in his hometown Haman and his wife's hometown moreover Nammyung's hometown Samga. Besides his father-in-law Nopa was the disciple of Nammyung's disciple Junginhong and he had be the chairman of Yongyam memorial hause. Though Gansong became a member of Nammyung school, he never has seceded from Tygae school. He has always play active part as both a member of Nammyung school and a member of Tygae school. Consequently his association span was very wide, and he made the best use of these circumstances. He has strained every nerve to mediate two schools. He was well-balanced scholar, so he has supported neither Nammyung school nor Tygac school. He adopted the good points of two schools and developed himself, became new own personality. Therefore he never have abtained a post in the government keeping his integrity. Though he has lived at seclusion, he has never forgotten nation and people. This point was influenced by Nammyung school. He has wirtten many prosees and poets, this point was influenced by Tygae school. His successors have regarded him as a member of Tygae school in order to uplit him. But this is not true. It is clear that he is both a member of Nammyung school and a member of Tygae school. His poet is very excellent, so deserves minutely study. If so, we can grasp him more crosely.

Ⅰ. 緖 論 
Ⅱ. 傳奇的 考察 
Ⅲ. 學統과 師友關係 
Ⅳ. 學術思想 
Ⅴ. 退溪·南冥 兩學派의 融和를 위한 努力 
Ⅵ. 結 論

• 許捲洙