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Just as iron rusts from disuse, and stagnant water putrefies, or when cold turns to ice, so our intellect wastes unless it is kept in use.

Leonardo da Vinci

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Leonardo da Vinci
Age: 67 †
Born: 1452
Born: April 15
Died: 1519
Died: May 2
Anatomist
Architect
Astronomer
Botanist
Caricaturist
Chemist
Civil Engineer
Composer
Diplomat
Engineer
Inventor
Mathematician
Musician
Turns
Ice
Water
Iron
Intellect
Use
Kept
Rusts
Inspirational
Waste
Disuse
Life
Unless
Wastes
Cold
Stagnant
Wisdom
Rust

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If a man has a tent made of linen of which the apertures have all been stopped up, and be it twelve bracchia across (over twenty-five feet) and twelve in depth, he will be able to throw himself down from any height without sustaining injury. [His concept of the parachute.]
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An arch consists of two weaknesses which, leaning one against the other, make a strength.
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You don't get into trouble because of the things you don't know. It is the things you don't know you don't know that really get you into a mess.
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The cat is nature's masterpiece.
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Of several bodies, all equally large and equally distant, that which is most brightly illuminated will appear to the eye nearest and largest.
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If you are representing a white body let it be surrounded by ample space, because as white has no colour of its own, it is tinged and altered in some degree by the colour of the objects surrounding it
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While I thought that I was learning how to live, I have been learning how to die.
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Men of genius sometimes accomplish most when they work least, for they are thinking out inventions.
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To any white body receiving the light from the sun, or the air, the shadows will be of a bluish cast.
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The boundaries of bodies are the least of all things.
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Science is the observation of things possible, whether present or past prescience is the knowledge of things which may come to pass, though but slowly.
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When you draw a nude, sketch the whole figure and nicely fit the members to it and to each other. Even though you may only finish one portion of the drawing, just make certain that all the parts hang together, so that the study will be useful to you in the future.
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As regards this vice, we read that the peacock is more guilty of it than any other animal. For it is always contemplating the beauty of its tail, which it spreads in the form of a wheel, and by its cries attracts to itself the gaze of the creatures that surround it. And this is the last vice to be conquered.
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Time stays long enough for anyone who will use it.
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The organ of perception acts more readily than judgment.
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If you put on more garments, the cold cannot reach you. Similarly, increase your patience and concentration and even great injuries cannot vex your mind.
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The poet ranks far below the painter in the representation of visible things, and far below the musician in that of invisible things.
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You should often amuse yourself when you take a walk for recreation, in watching and taking note of the attitudes and actions of men as they talk and dispute, or laugh or come to blows with one another... noting these down with rapid strokes, in a little pocket-book which you ought always to carry with you.
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Man has much power of discourse which for the most part is vain and false animals have but little, but it is useful and true, and a small truth is better than a great lie.
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Patience serves as a protection against wrongs as clothes do against cold.
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