This fascicle is named as Si Jong Yong Ron because it puts an emphasis on attitude in diagnosis and is divided into two chapters, chapter 1 dealing with the principle of how to distinguish differences and how to compare similarities in classification, chapter 2 emphasizing an importance in classification alike examplfying similar symptoms of diseases in spleen, stomach, and lung. Accurate diagnosis should be at first done for proper treatment, classification should be accurate for precise diagnosis, and calm and intensive observation to a patient could give rise to precise classification. This fascicle has a great significance in that it supplies a detailed explanation about the principle for precise classifiication.

• 金甫勳(圓光大學校韓醫科大學原典學敎室) | 김보훈
• 鄭憲瑩(圓光大學校韓醫科大學原典學敎室) | 정헌영
• 琴坰樹(圓光大學校韓醫科大學原典學敎室) | 금경수
• 朴炅(圓光大學校韓醫科大學原典學敎室) | 박경