Compare the following two questions, both of which greatly exercised ancient Greek and Roman thinkers:
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What is a good human life?
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Why isn’t the earth falling?
They appear about as different as any two questions could be. The first is one that most of us continue to consider important today. The second is not a question we are likely even to think worth asking: however little physics we know, we know enough to realize that the question itself rests on false suppositions.