相对主义是自我摧毁的

核心论证 Core Argument

道德相对主义声称没有客观的对与错，一切道德判断都是相对于文化或个人的。但这个立场在逻辑上是自我摧毁的：“没有客观真理”本身就是一个声称客观为真的命题。如果一切道德都是相对的，那么“我们应该尊重他人的道德观”这个命题本身也只是相对的，没有约束力。在实践中，没有人真正活出一贯的相对主义——当他们自己被不公正对待时，他们立即诉诸客观的公正标准。相对主义也无法谴责任何文化的做法（如种族灭绝、奴隶制），因为这些在特定文化中可能被认为是“对的”。

Moral relativism claims there is no objective right and wrong; all moral judgments are relative to culture or individuals. But this position is logically self-defeating: 'There is no objective truth' is itself a claim purporting to be objectively true. If all morality is relative, then 'We should respect others' moral views' is itself only relative and non-binding. In practice, no one consistently lives out relativism — when treated unjustly themselves, they immediately appeal to objective standards of fairness. Relativism also cannot condemn any culture's practices (genocide, slavery), since these may be considered 'right' within that culture.