In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.
Q: This thinker used an elliptic pattern to map a sphere as a square to create his "quincuncial map." This philosopher wrote a work that examines whether a diamond in a cushion of cotton can be called hard. He outlined the index, the icon, and the symbol as three classifications to his theory of the triadic relationship between the interpretant, the sign, and the object. He juxtaposed the "Gospel of Greed" and the "Gospel of Belief" in his article "Evolutionary Love" and wrote a work that dismisses the "method of authority" and the "method of tenacity" in favor of the scientific method in an article in Popular Science Monthly. For 10 points name this author of "The Fixation of Belief" and "How to Make Our Ideas Clear", one of the founders of Pragmatism.
A:
Social Science