 Now, in his replies, Kobong criticized the obvious dualism implied by the thesis of separate issuance on the part of T’oegye. He said that both the Four Sprouts and the Seven Emotions are all basic human feelings of one and the same stripe. In his first letter to T’oegye, Kobong audaciously suggests that the Four are a good side to the Seven. Let’s call this the thesis of the continuum between the Four and the Seven. According to Kobong, then T’oegye’s fallacy stemmed ultimately from the latter’s assumption that the Four and the Seven are two separate kinds of feelings and accordingly there are two kinds of good feelings—the ones in the Seven and the ones in the Four. It was also wrong to view Principle and Vital Force as being independent from each other.