Passage Summary: The author argues that studying history is useless for avoiding mistakes because every situation in history is a one-time event that won't happen the same way again.

Conclusion: We should reject the recommendation to study history as a way to avoid repeating past mistakes.

Reasoning: Historical events are unique, unrepeatable accidents, meaning modern crises are never truly the same as past ones; therefore, history cannot actually teach us how to avoid mistakes.

Analysis: In 'Identify the Conclusion' questions, your job is to find the author's main point of contention. Here, the author explicitly mentions Santayana's advice and then immediately states, 'But we should not follow his advice.' Everything that follows is a series of premises intended to prove why that advice is bad. Don't get distracted by the final sentence; while it looks like a conclusion, it is actually a sub-conclusion used to support the primary claim that we should ignore Santayana. It is a bit like someone saying 'Don't buy that car because it's unreliable, and unreliable cars are a waste of money'—the main point is 'Don't buy that car.'