"[A] radical form of freedom may be found in the fact that we cannot be forced by the world to accept one set of values rather than another" said Williams. "The Truth in Relativism," in Moral Luck: Philosophical Papers 1973–1980, Cambridge: Cambridge University Press, 1981. First published in Proceedings of the Aristotelian Society, LXXV, 1974–1975, 215–228.

I couldn’t disagree more, but many such cases with moral antirealists and people like myself. He seems like a decent enough chap, but terminally misguided on metaethics.