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Last time, we met Isaac Newton, the solitary genius who unified heaven and earth with his

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laws of motion and gravitation. We saw his method of fluxions and learned about his difficult

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personality and bitter feuds. Welcome back to Men of Mathematics. Today,

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we meet Newton's rival, Gottfried Wilhelm Leibniz, the universal genius whose notation triumphed

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even as Newton's reputation crushed him.

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Philosopher, mathematician, diplomat, inventor.

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Leibniz was the last person who could reasonably claim

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to know everything there was to know.