Moral principles may be understood as universal or culturally relative, depending on the meta-ethical theory adopted. However, differences between cultures do not by themselves prove that no universal moral standards exist.
Moral universalism holds that at least some moral principles apply to every person, regardless of culture or historical period. A universalist might argue that prohibitions against torture or unjustified killing follow from reason, human dignity, natural rights, or facts about human well-being.
Cultural relativism claims that moral truth or justification depends on the norms of a particular culture. On this view, an action can be right within one cultural framework but wrong within another, with no culture-independent standard available to settle the disagreement.
A crucial meta-ethical distinction is between descriptive cultural relativism and meta-ethical cultural relativism. The first is the empirical observation that cultures have different moral beliefs. The second is the philosophical claim that moral truth itself is relative to culture.
| Position | Central claim | Main challenge |
|---|---|---|
| Moral universalism | Some moral principles are objectively valid for everyone. | Universal principles may disguise the values of a dominant culture. |
| Cultural relativism | Moral truth depends on cultural norms. | It becomes difficult to condemn slavery, genocide, or oppression when a culture accepts them. |
| Moral pluralism | Several objective values exist and may conflict. | It may not provide one clear solution when values are incompatible. |
The common misconception is that widespread moral disagreement proves cultural relativism. This reasoning is invalid: disagreement about a claim does not establish that there is no objective truth about it. Relativists therefore need an additional argument showing why cultural approval determines moral truth.
In an IB Philosophy response, define both positions before evaluating them. Use a counterexample, distinguish descriptive evidence from a meta-ethical conclusion, and reach a justified conclusion rather than merely stating that “both sides are valid.”
