Miller\u27s important book divides in two. The metaethical half argues that moral inquiry can provide nondogmatic access to truth as in science: we can explain our moral judgments as the exercise of our capacities for detection. Miller\u27s moral realism is modest, however, because he believes in truth without universality and grants the coherence of moral nihilism. He provides penetrating criticisms of such anti-realists as Gilbert Harman (The Nature of Morality, CH, Sep\u2777) and John Mackie (Ethics, CH, May\u2778) and such kindred spirits as Richard Boyd (“How to Be a Moral Realist,” in Essays on Moral Realism, ed. by G. Sayre-McCord, CH, Dec\u2789). The normative half argues that justice is social freedom: social institutions are just ...