In Defense of Radical Empiricism
In Defense of Radical Empiricism A thesis presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Master of Arts Ryan D. Ross May 2015 © 2015 Ryan D. Ross. All Rights Reserved. 2 This thesis titled In Defense of Radical Empiricism by RYAN D. ROSS has been approved for the Department of Philosophy and the College of Arts and Sciences by John W. Bender Professor of Philosophy Robert Frank Dean, College of Arts and Sciences 3 Abstract ROSS, RYAN D., M. A., May 2015, Philosophy In Defense of Radical Empiricism Director of Thesis: John W. Bender Laurence BonJour defends a moderate version of rationalism against rivaling empiricist epistemologies. His moderate rationalism maintains that some beliefs are justified a priori in a way that does not reduce to mere analyticity, but he tempers this strong claim by saying that such justification is both fallible and empirically defeasible. With the aim of ruling out radical empiricism (the form of empiricism that repudiates the a priori), BonJour puts forth what he calls the “master argument.” According to this argument, the resources available to radical empiricists are too slender to allow for justified empirical beliefs that go beyond what is immediately available to sense- perception, e.g., what we see, hear, and taste. If so, then radical empiricists are committed to a severe form of skepticism, one in which it is impossible to have justified beliefs about the distant past, the future, unobserved aspects of the present, etc. Worse, radical empiricists, who pride themselves on their scientific worldview, would be unable to account for justified beliefs about the abstract, theoretical claims of science itself! Clearly, the master argument is intended to hit the radical empiricist where it hurts.
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