This document outlines the key elements of Greek tragedy according to Aristotle. It defines tragedy as the downfall of a basically good protagonist through some error or misjudgment. The three principles are that tragedy should evoke pity and fear in the audience, the tragic hero must be good, and the hero's demise comes from personal error. Other elements are plot, characters (the tragic hero), thought (theme), diction (literary devices), song (chorus), and spectacle (least important). The plot must have beginning, middle, end, and cause-effect chain leading to climax and resolution. The tragic hero's flaw and hubris often lead to nemesis or downfall.