(*) "guiding principle of inference".
In one paper, this man outlined adherence to "Cartesianism" as a major problem of philosophy because it's impossible to begin philosophy with complete doubt. This man listed feeling, reaction and meditation as "Firstness", "Secondness", and "Thirdness". One work by this man outlined the method of tenacity and method of authority as ways of settling opinions, and also outlined the (*) "guiding principle of inference". Another work by this thinker, which was part of his series Illustrations of the Logic of Science, discusses the example of adding accelerations together using a parallelogram and contrasts distinct and confused conceptions. For 10 points, name this author of "The Fixation of Belief" and "How to Make Our Ideas Clear", an early American pragmatist.
In one paper, this man outlined adherence to "Cartesianism" as a major problem of philosophy because it's impossible to begin philosophy with complete doubt.
Charles Sanders Peirce