According to Aristotle, tragedy depicts the downfall of a good person through some mistake. This evokes pity and fear in the audience, which is the natural human response to suffering that could happen to anyone. For Aristotle, a true tragedy arouses and then purges emotions. The demise of the tragic hero must result from their own flawed action, not just bad luck, and a nobler hero will elicit more grief at their downfall. The hero must be good but also bear responsibility for their fate through some choice or decision.