people accurately until you get these five extreme types firmly in your mind, for they are your alphabet. Founded in Five Biological Systems Each PURE type is the result of the over-development of one of the five biological systems possessed by all human beings--the nutritive, circulatory, muscular, bony or nervous. Therefore every individual exhibits to some degree the characteristics of all the five types. The Secret of Individuality But his PREDOMINANT traits and INDIVIDUALITY--the things that make him
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