His father was a well-known American mathematician and helped stimulate  his interest in science. He himself was also a mathematician may have been  the most knowledgeable logician of his day. He helped develop semiotics, the  study of the use of signs and symbols, but today he is best known as a  philosopher. His 1878 essay "How to Make Our Ideas Clear" made him an early  leader of Pragmatism. Fo
His father was a well-known American mathematician and helped stimulate  his interest in science. He himself was also a mathematician may have been  the most knowledgeable logician of his day. He helped develop semiotics, the  study of the use of signs and symbols, but today he is best known as a  philosopher. His 1878 essay "How to Make Our Ideas Clear" made him an early  leader of Pragmatism. For 10 points name this American thinker.
His father was a well-known American mathematician and helped stimulate  his interest in science.
Charles Sanders Peirce (PRON: purse)