Abstract

Does the fact that other people believe something give me a reason to believe it, too? Yes, and this epistemic fact is explained by the principle of common consent. PCC says that if S knows that others believe that P, then this fact gives S a reason to believe that P. Despite the fact that most logic texts file the appeal to the majority under the category of a fallacy, the principle of common consent is true. The principle can be defended by an appeal to the interpretive dilemma, a lesson from the epistemology of disagreement, an analogy to epistemic self-trust, and an inference to the best explanation for a wide range of epistemic data. Typical objections to the principle are unpersuasive and rest on either an infallibilist epistemology or an interpretive mistake.