One hears this a lot from liberals. Indeed, it could be taken as another of the key facades of liberalism. (Facade because liberals don't really mean this when they say it. If the people of some state have the opinion, say, that men should use the men's bathroom, and women should use the women's bathroom, liberals are quite happy to try economically ruin that state for believing that.) Legally, of course, one has a "right" to any belief whatsoever. But liberals usually mean much more: they mean that morally , everyone has a "right" to their own opinion. That is nonsense. If one's opinion is in error, one has an obligation to correct it, and bring it toward the truth. As Thaddeus Kozinski puts it : "Of course, the existence of a pluralism of 'truths' is not a good thing, for there is only one truth, and error is the result of sin. Pluralism, in short, must be seen, per se, as a grave defect of spiritual, intellectual, social, and po