姜甑山과 大巡思想의 毋自欺에 관한 연구

Abstract

There is a phrase in 『The Great Learning』, “What we call 'making the thought sincere' is 'allowing no self-deceit'. So, a gentleman must be careful of himself when alone. A mean man will do whatever is evil when alone. When he sees gentlemen, he suddenly tries to disguise himself, hiding his evil and showing his good. The others penetrate his disguise as if they saw his lungs and liver. Of what use is that? This is called 'What truly is within will be manifested without.' So, a gentleman must be careful of himself when alone. Clear conscience contributes to physical well-being. Therefore, a gentleman must make his thought sincere.” According to GangJeunsan and Daesoon Thoughts, the phrase, "'making the thought sincere' is 'allowing no self-deceit'", implies the core concept of ethicality and religiosity. The main characteristic of ethicality and religiosity of GangJeunsan and Daesoon Thoughts is that it understand the phrase not only ethically as neo-confucian did but also religiously. In GangJeunsan and Daesoon Thoughts, all of speaking, behaving, practicing virtue and being well-versed are originated from the concept of "'making the thought sincere' is 'allowing no self-deceit'" in 『The Great Learning』.