Among the most influential books in Western civilization, Aristotle's Poetics is really a treatise on fine art. In it are mentioned not only epic and dithyrambic poetry, but tragedy, comedy, and flute and lyre playing. Aristotle's conception of tragedy, i.e. the depiction of a heroic action that arouses pity and fear in the spectators and brings about a catharsis of those emotions, has helped perpetuate the Greek ideal of drama to the present day...