Passage Summary: You can't just say being 'faithful' is a good thing; it depends on what you are faithful to, because being faithful to a grudge isn't a virtue.

Conclusion: Whether faithfulness is considered a virtue depends on the specific object of that faithfulness.

Reasoning: Virtues are inherently praiseworthy; because resentment is a form of faithfulness to negative emotions like hatred, it is not praiseworthy and thus not a virtue.

Analysis: The first sentence is the main conclusion, as it is the broad claim the author intends to prove. The second sentence provides the supporting evidence by defining 'virtue' and offering 'resentment' as a counterexample to the idea that all faithfulness is virtuous. The phrase 'which is why' acts as a directional indicator, showing that the definition of virtue is being used to explain the truth of the opening statement. To identify the conclusion here, look for the statement that is supported by the other claims but does not support anything else.