Extending recent appropriations of Charles S. Peirce's work in political theory, we argue that the same epistemic norms that justify democracy offer a plausible basis for justifying multiculturalist policies aimed at protecting at-risk cultural groups. Because this epistemic argument is compatible with a full range of reasonable comprehensive doctrines, it fully accommodates the fact of reasonable pluralism, thereby skirting the Rawlsian objection to which the multiculturalisms of Charles Taylor and Will Kymlicka fall prey.