Truth (n.) is not equal to certainty. Descartes was after the latter but perhaps not the former.
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Truth (n.) usually lies between the two opinions in a dispute, and each side strays from it as far as it loves to contradict.
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Truth (n.) is never new: there is nothing older.
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Truth (n.) is identical with existence: whatever is true is something.
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Truth (n.) is not passed down but reproduced: whoever grasps it must build it again in themselves, as if discovering it for the first time.