Robust Ethics: The Metaphysics and Epistemology of Godless Normative Realism

Erik J. Wielenberg's monograph presents a sustained defense of moral realism without theistic foundations, directly challenging the widespread assumption that objective moral truths require divine grounding. The work systematically develops what Wielenberg terms "robust normative realism," arguing that moral facts exist as brute features of reality, neither reducible to natural facts nor dependent on supernatural ones.

The book's central philosophical contribution lies in its articulation of a "third way" between naturalistic reductionism and theistic moral realism. Wielenberg contends that certain moral truths, such as the intrinsic wrongness of torturing innocents for pleasure, constitute necessary truths akin to mathematical or logical principles. These moral facts supervene on natural facts through what he calls "making relations" - non-causal connections that ground moral properties in non-moral states of affairs without reducing the former to the latter.

Wielenberg engages extensively with theistic critics, particularly addressing William Lane Craig's moral argument for God's existence and Robert Adams's divine command theory. Against Craig, he argues that the alleged explanatory advantage of theism dissolves once one recognizes that both positions must accept some brute ethical facts. The theist merely pushes the bruteness back one step to God's nature, gaining no genuine explanatory ground. Against Adams and other divine command theorists, Wielenberg develops a particularly innovative argument: even if God exists, divine commands could only generate obligations if there were already stance-independent moral truths about the normative significance of such commands.

The work's epistemological dimensions prove equally significant. Wielenberg defends moral knowledge through a qualified reliabilism, arguing that evolutionary processes, while not aimed at truth, can produce reliable moral faculties when combined with rational reflection. This approach allows him to address evolutionary debunking arguments while maintaining epistemic justification for moral beliefs.

The monograph's importance extends beyond technical metaethics to broader cultural debates about morality's foundations. By providing a sophisticated framework for objective morality without God, Wielenberg challenges both religious conservatives who claim atheism entails nihilism and secular thinkers who embrace anti-realism. His position demonstrates that rejecting theism need not mean abandoning robust moral truth. The work thus occupies a crucial space in contemporary philosophy of religion, offering secular thinkers resources for defending objective ethics while forcing theistic ethicists to reconsider their assumptions about morality's metaphysical requirements.