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Axiology, also known as the Theory of Value, is the philosophical study of goodness and value in its broadest sense. It expands the meaning of "value" beyond its original economic context, as used by thinkers like Adam Smith, to encompass moral, aesthetic, and even logical questions.1

Key concepts in axiology include the distinction between instrumental value (good as a means) and intrinsic value (good as an end). Different philosophical schools offer various perspectives on what constitutes intrinsic value, with some emphasizing pleasure, satisfaction, or harmonious self-realization, while others propose multiple intrinsically good things.1

A central debate in axiology concerns the relationship between fact and value. Subjectivists argue that something has value because it is desired, while objectivists contend that it is desired because it possesses inherent value. Noncognitivists, however, deny that value judgments have cognitive status, viewing them as emotive or prescriptive. The philosophy of art also explores value, distinguishing between extrinsic (art as a means to a moral good) and intrinsic (art as an end in itself) theories of art's worth.12

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