Naturalism is any of several philosophical stances, typically those descended from materialism and pragmatism, that do not distinguish the supernatural (including strange entities like non-natural values, and universals as they are commonly conceived) from nature. Naturalism does not necessarily claim that phenomena or hypotheses commonly labeled as supernatural do not exist or are wrong, but insists that all phenomena and hypotheses can be studied by the same methods and therefore anything considered supernatural is either nonexistent, unknowable, or not inherently different from natural phenomena or hypotheses.