How did Sir Philip Sidney explain why comic portrayals of common errors can teach people moral lessons?

In his influential work The Defence of Poesie, Sir Philip Sidney explains that comedy serves a moral purpose by acting as an imitation of the common errors of human life.1

Sidney argues that by representing these errors in the most ridiculous and scornful manner possible, the comic dramatist ensures that no member of the audience would ever wish to be associated with such behavior. Essentially, comedy teaches by making folly appear so unattractive and absurd that the viewer is moved to reject those traits in themselves.1

This perspective aligns with the broader Renaissance view that comedy functions as an adjunct to morality by using derision to expose and discourage vice. By highlighting the incongruous nature of these errors, comedy prompts a form of scornful laughter that serves as a social and moral corrective, effectively "laughing" folly out of countenance.1