Meanwhile, many Muslims—for instance—would agree that moral relativism is beneath contempt, while insisting that
We don’t have to assume that there are no moral truths in order to study other cultures fairly and objectively; we just have to set aside, for the time being, the assumption that we already know what they are. Imperialist universalism (of any variety) is not a good way to start. Even if “we†are right, insisting on it from the outset is ultimately neither diplomatic
The idea of a transcendent value is rather like the idea of a perfectly straight line—not achievable in practice, but readily comprehended as an ideal that can be approximated even if it can’t be fully articulated. At first this may look like a dubious dodge—an ideal that we all somehow accept even if nobody can say what it is! But in fact, just such ideals are accepted and inescapable even in the most rigorous and formalistic of investigations. Consider the ideal of rationality itself. When logicians disagree about whether classical logic is to be preferred to intuitionistic logic, for instance, they have to have in mind a prior standard of rationality, by appeal to which one logic could be seen (by all) as better than another, and they have to presume that they share this ideal, but they don’t have to be able to formulate this standard explicitly—that’s what they’re working on. And in just the same spirit, people with radically different ideas about which policies or laws would best serve humanity can—indeed, must—presuppose
Balkin provides an imaginary dialogue that illustrates the appeal to transcendent values in its simplest form. A marauding army massacres the people and we call them war criminals. They object, saying that their culture permits what they have done, but we can turn their point back on them.
…we can say to them: “If standards of justice and truth are internal to each culture, you can have no objection to our characterization of you as war criminals. For just as our standards can have no application to you, your standards can have no application to us. We are as correct in proclaiming your evil in our culture as you are correct in proclaiming your uprightness in yours. But your very assertion that we have misunderstood you undermines this claim. It presupposes common values of truth and justice that we are somehow obligated to recognize. And on that ground we are prepared to argue for your wickedness.†[p. 148]