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1 Introduction
Hitherto there are so many different ideas, individuals and groups with their unique name or appearances as their entity¡¯s emblems in our world that it seems that ¡°People have been so encouraged by society to focus on apparent differences that they fail to see meaningful similarities among ideas, individuals, and groups.¡± Are things that? My answer is ¡°No¡±, for focus on discrepancies is a necessary step for us human beings to look into the similarity, the common nature of things. Personally I think that society doesn¡¯t let people emphasize too much on differences to look into the common insides of things in that differences, however ubiquitous they are in our society, are the starting point we understa...