Relativism

Relativism is a doctrine which is associated with both Epistemology and Ethics.

Epistemic Relativism - They epistemological view which holds that there are no facts beyond one's own perceptions (or experiences). Hence, anything that I believe is "true" because there is no objective fact of the matter. The strong version of epistemic relativism (called 'Subjectivism') holds that the inidvidual determine reality while the more conservative form of relativism (called 'Conventionalism') claims that truth depends on cultural or historical perspective.
Ethical Relativism - The Descriptivist position which maintains that ethical systems are not objective features of the universe. Since they are not objective, the Relativist maintains that ethical systems are relative to either individual agents (called 'Subjectivism') or specific social groups (called 'Conventionalism').