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Journal of Philosophical Research

Volume 40, 2015

Kevin McCain
Pages 369-376
DOI: 10.5840/jpr201511334

No Knowledge without Evidence

The Evidence Thesis is the intuitively plausible principle that in order to know that p one must base her belief that p on adequate evidence. Despite the plausibility of this principle, Andrew Moon (2012) has recently argued that the principle is false. Moon’s argument consists of presenting what he takes to be a clear instance of knowledge and arguing that the subject in the case does not have this knowledge on the basis of any evidence. I argue that Moon’s example fails to be a genuine counterexample to the Evidence Thesis.