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Experience, the interpreter between formative nature and the human race, teaches how that nature acts among mortals; and being constrained by necessity cannot act otherwise than as reason, which is its helm, requires her to act.
Leonardo da Vinci
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If you transmit the rays of the sun through a hole in the shape of a star you will see a beautiful effect of perspective in the spot where the sun's rays fall.
Leonardo da Vinci
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A vase of unbaked clay, when broken, may be remoulded, but not a baked one.
Leonardo da Vinci
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You will perhaps say that the sinews and muscles of a bird are incomparably more powerful than those of a man... But the reply to this is that such great strength gives it a reserve of power beyond what it ordinarily uses...
Leonardo da Vinci
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Wine is good, but water is preferable at table.
Leonardo da Vinci
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Our life is made by the death of others.
Leonardo da Vinci
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Swimming upon water teaches men how birds do upon the air.
Leonardo da Vinci
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The man who blames the supreme certainty of mathematics feeds on confusion, and can never silence the contradictions of sophistical sciences which lead to an eternal quackery.
Leonardo da Vinci
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The senses are of the earth; Reason, stands apart in contemplation.
Leonardo da Vinci
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That part of the air which is nearest to the wing which presses on it, will have the greatest density.
Leonardo da Vinci
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Iron rusts from disuse; stagnant water loses its purity and in cold weather becomes frozen; even so does inaction sap the vigor of the mind.
Leonardo da Vinci
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Shun those studies in which the work that results dies with the worker.
Leonardo da Vinci
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The motive power is the cause of all life.
Leonardo da Vinci
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The greatest deception men suffer is from their own opinions.
Leonardo da Vinci
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He who does not punish evil commands that it be done.
Leonardo da Vinci
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A single and distinct luminous body causes stronger relief in the object 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 so illuminated only by the diffused light of the atmosphere.
Leonardo da Vinci
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Tell me if anything was ever done.
Leonardo da Vinci
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The eye can best distinguish the forms of objects when it is placed between the shaded and the illuminated parts.
Leonardo da Vinci
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It is ill to praise, and worse to reprimand in matters that you do not understand.
Leonardo da Vinci
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He who walks straight rarely falls.
Leonardo da Vinci
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Represent your figures in such action as may be fitted to express what purpose is in the mind of each; otherwise your art will not be admirable.
Leonardo da Vinci
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To speak well of a base man is much the same as speaking ill of a good man.
Leonardo da Vinci
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When the thing taken into union is perfectly adapted to that which receives it, the result is delight and pleasure and satisfaction.
Leonardo da Vinci
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He who offends others, does not secure himself.
Leonardo da Vinci
