Book excerpt: "Moral fundamentalism" is Steven Fesmire's term for the habit of acting as though one has access to the exclusively right way to diagnose problems, along with the only practical solution. This habit causes us to oversimplify situations, neglect broader context, take refuge in dogmatic absolutes, ignore possibilities for finding common ground, assume privileged access to the right way to proceed, and shut off honest inquiry. Moral fundamentalism makes it impossible to debate and achieve superordinate social goals, such as public health, justice, security, sustainability, peace, and democracy. Drawing from John Dewey's pluralistic and pragmatic approach to philosophical questions, Fesmire develops an alternative to both the oversimplification of moral fundamentalism and the arbitrariness of relativism, which he terms "pragmatic pluralism."