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If you find from your own experience that something is a fact and it contradicts what some authority has written down, then you must abandon the authority and base your reasoning on your own findings.

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
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Inventor
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More quotes by Leonardo da Vinci

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It's not enough that you believe what you see. You must also understand what you see.
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We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.
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Tears come from the heart and not from the brain
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Time stays long enough for anyone who will use it.
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It is useful to constantly observe, note, and consider.
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A single and distinct luminous body causes stronger relief in the objects than a diffused light as may be seen by comparing one side of a landscape illuminated by the sun, and one overshadowed by clouds, and illuminated only by the diffused light of the atmosphere.
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The sun gives spirit and life to the plants and the earth nourishes them with moisture.
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life without love, is no life at all
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Make yourself a master of perspective, then acquire perfect knowledge of the proportions of men and other animals.
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That painter who has no doubts will achieve little.
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I would venture to affirm that a man cannot attain excellence if he satisfy the ignorant and not those of his own craft, and if he be not 'singular' or 'distant,' or whatever you like to call him.
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The Medici made me and the Medici destroyed me.
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Learning never exhausts the mind.
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The fame of the rich man dies with him the fame of the treasure, and not of the man who possessed it, remains.
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Details make perfection, and perfection is not a detail.
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I roamed the countryside searching for answers to things I did not understand. Why shells existed on the tops of mountains. How the various circles of water form around the spot which has been struck by a stone, and why a bird sustains itself in the air.
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Obstacles cannot crush me. Every obstacle yields to stern resolve. He who is fixed to a star does not change his mind.
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In rivers, the water that you touch is the last of what has passed and the first of that which comes so with present time.
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Some promises and time disappoint us
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The painter has the Universe in his mind and hands.
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