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A shadow will appear dark in proportion to the brilliancy of the light surrounding it and conversely it will be less conspicuous where it is seen against a darker background.
Leonardo da Vinci
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Constancy does not begin, but is that which perseveres.
Leonardo da Vinci
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In many cases one and the same thing is attracted by two strong forces, namely Necessity and Potency. Water falls in rain; the earth absorbs it from the necessity for moisture; and the sun evaporates it, not from necessity, but by its power.
Leonardo da Vinci
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A luminous body will appear more brilliant in proportion as it is surrounded by deeper shadow.
Leonardo da Vinci
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I obey Thee Lord, first for the love I ought, in all reason to bear Thee; secondly for that Thou canst shorten or prolong the lives of men.
Leonardo da Vinci
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While I thought I have been learning how to live, I have been learning how to die.
Leonardo da Vinci
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May it please our great Author that I may demonstrate the nature of man and his customs, in the way I describe his figure.
Leonardo da Vinci
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The bones of the Dead will be seen to govern the fortunes of him who moves them.
Leonardo da Vinci
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Science, knowledge of the things that are possible present and past; prescience, knowledge of the things which may come to pass.
Leonardo da Vinci
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All objects project their whole image and likeness, diffused and mingled in the whole of the atmosphere, opposite to themselves. The image of every point of the bodily surface, exists in every part of the atmosphere. All the images of the objects are in every part of the atmosphere.
Leonardo da Vinci
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The painter who draws merely by practice and by eye, without any reason, is like a mirror which copies every thing placed in front of it without being conscious of their existence.
Leonardo da Vinci
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Every body in light and shade fills the surrounding air with infinite images of itself; and these, by infinite pyramids diffused in the air, represent this body throughout space and on every side.
Leonardo da Vinci
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The outlines and form of any part of a body in light and shade are indistinct in the shadows and in the high lights; but in the portions between the light and the shadows they are highly conspicuous.
Leonardo da Vinci
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Many will there be who will give up work and labour and poverty of life and goods, and will go to live among wealth in splendid buildings, declaring that this is the way to make themselves acceptable to God.
Leonardo da Vinci
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Human subtlety...will never devise an invention more beautiful, more simple or more direct than does nature, because in her inventions nothing is lacking, and nothing is superfluous.
Leonardo da Vinci
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Nothing is that which fills no space. If one single point placed in a circle may be the starting point of an infinite number of lines, and the termination of an infinite number of lines, there must be an infinite number of points separable from this point, and these when reunited become one again; whence it follows that the part may be equal to the whole.
Leonardo da Vinci
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Those who fall in love with practice without science are like a sailor who enters a ship without a helm or a compass, and who never can be certain whither he is going.
Leonardo da Vinci
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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.
Leonardo da Vinci
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When the sun appears which dispels darkness in general, you put out the light which dispelled it for you in particular for your need and convenience.
Leonardo da Vinci
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No small hole can so modify the convergence of rays of light as to prevent, at a long distance, the transmission of the true form of the luminous body causing them.
Leonardo da Vinci
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Why does the eye see a thing more clearly in dreams than with the imagination being awake?
Leonardo da Vinci
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When you represent in your work shadows which you can only discern with difficulty, and of which you cannot distinguish the edges so that you apprehend them confusedly, you must not make them sharp or definite lest your work should have a wooden effect.
Leonardo da Vinci
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Feathers shall raise men towards the heaven even as they do the birds:-That is by the letters written by their quills.
Leonardo da Vinci
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It is easier to contend with evil at the first than at the last.
Leonardo da Vinci
