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English
THE MANUSCRIPTS
OF
LEONARDO DA VINCI
Vignette in an oval frame featuring a mechanical drawing by Leonardo (possibly a plow or maritime instrument) entwined with a scroll.
obstinate rigor
original: "hostinato rigore." This was Leonardo's personal motto, transcribed here from his characteristic mirror-script handwriting. It reflects his philosophy of relentless discipline and persistent effort in both art and science.
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