Passage Summary: Getting angry at insults is illogical because if the person is wrong, they are just pitiable, and if they are right, they are actually doing you a favor.

Conclusion: It is never a reasonable response to feel anger when someone insults you.

Reasoning: An insult is just a claim about a person; if the claim is false, the insulted person should feel pity for the speaker's ignorance, and if it is true, they should be thankful for the helpful feedback.

Analysis: The author assumes that because pity or gratitude are 'appropriate' responses, anger is automatically 'unreasonable.' This is a classic gap in logic where the author fails to account for the possibility that one could reasonably feel both gratitude/pity and anger simultaneously. To make this conclusion follow logically, we need an assumption that explicitly excludes anger as a reasonable option whenever pity or gratitude is warranted.