This paper argues that we can acknowledge the existence of moral truths and moral progress without being committed to moral realism. Rather than defending this claim through the more familiar route of the attempted analysis of the ontological commitments of moral claims, I show how moral belief change for the better shares certain features with theoretical progress in the natural sciences. Proponents of the better theory are able to convince their peers that it is formally and empirically superior to its (...) rivals, and the better theory may be promoted to the status of the truth. Yet there is no 'decision-procedure' for ethics any more than there is for molecular biology. The betterness of true theories can be grasped through what I term 'undirectional narratives' of progress. And while there are true moral claims and perhaps numerous moral truths yet to be discovered, we should reject currently popular forms of moral realism with bivalence. Some moral claims lend themselves to the construction of fully reversible, bi-directional narratives and are likely neither true nor false. (shrink)

In Recent years noncognitivist ethical theories have been supported by an argument which has come to be widely accepted among moral philosophers.1 According to this argument, an ethical term like ‘good’ has both a commending function and a describing function, but between these functions there is the important difference that the commending function alone is invariant while the describing function varies greatly. For many and different things may be called good—hammers, sunsets, paintings, missionaries, cannibals—but despite these differences in the descriptive (...) criteria for applying the word to objects, ‘good’ retains a common meaning in all these uses, for in each case the word is being used to commend. The conclusion drawn, then, is that because of its being the sole invariant or common feature of every use of ‘good’, the commendatory function rather than the varying descriptive function must be the primary meaning of ‘good’. I shall refer to this as the commendatory invariance argument. (shrink)