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Alexander von Humboldt - From the Curiosity category:
People often say that I'm curious about too many things at once... But can you really forbid a man from harbouring a desire to know and embrace everything that surrounds him? (Alexander von Humboldt)
Alexander von Humboldt - From the Health category:
True enjoyment comes from activity of the mind and exercise of the body; the two are united. (Alexander von Humboldt)
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