"Just as iron rusts from disuse... even..." - Quote by Leonardo Da Vinci
Just as iron rusts from disuse... even so does inaction spoil the intellect.
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“Man is at his furthest remove from the animal as a child, his intellect most human. With his fifteenth year and puberty he comes astep closer to the animal; with the sense of possessions of his thirties (the median line between laziness and greediness), still another step. In his sixtieth year of life he frequently loses his modesty as well, then the septuagenarian steps up to us as a completely unmasked beast: one need only look at the eyes and the teeth.”
“Will, pure will, without the troubles and complexities of intellect - how happy! how free!”
“You can't reason with your heart; it has its own laws, and thumps about things which the intellect scorns.”