How best do we know what we know? What proof, gained by what sense, most assures us that what seems so, is in fact so? Is it sight, as often claimed, that best comforts us: “To see is to believe”? But the eyes are notorious liars. We are fooled by appearances again and again. Plato was right about that. Hearing is no better: if the eyes cannot distinguish appearances from reality, the ears are just as bad at discriminating the valid...
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