Walk through a museum and you will hear people say a painting is beautiful, or powerful, or ugly. Aesthetics asks what those judgments mean. Is beauty in the object or in the eye of the beholder? Can taste be educated? Are aesthetic judgments objective in any sense, or purely subjective? These questions have occupied philosophers since Plato, and they remain unsettled.

Alexander Baumgarten coined the term in the 18th century, defining aesthetics as the science of sensory perception. Immanuel Kant argued that judgments of beauty are subjective but universal: when I say a rose is beautiful, I am not merely reporting my pleasure, I am claiming that others ought to agree. David Hume thought taste could be refined through practice and exposure. In the 20th century, aesthetics expanded beyond beauty to include the philosophy of art, covering representation, expression, interpretation, and the definition of art itself.

Central questions

• Ontology. What kind of thing is a work of art?
• Interpretation. What determines the meaning of a work?
• Evaluation. What makes a work good or bad?
• Experience. What happens in us when we engage with art?

Aesthetics matters beyond museums. It shapes design, architecture, advertising, and everyday choices about what we find pleasing.