 This criticism has some—but not decisive— force, since two standard ways of supplying credentials for initial judgments are not available. One traditional way to support the reliability of these judgments or intuitions is to claim, as 18th century theorists did, that they are the result of a special moral faculty that allows us to grasp particular moral facts or universal principles. Modern proponents of reflective equilibrium reject such mysterious faculties. Indeed, they claim moral judgments are revisable, not foundational.