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I find that any luminous body when seen through a dense and thick mist diminishes in proportion to its distance from the eye. Thus it is with the sun by day, as well as the moon and the other eternal lights by night. And when the air is clear, these luminaries appear larger in proportion as they are farther from the eye.
Leonardo da Vinci -
Perspective is nothing more than a rational demonstration applied to the consideration of how objects in front of the eye transmit their image to it, by means of a pyramid of lines. The Pyramid is the name I apply to the lines which, starting from the surface and edges of each object, converge from a distance and meet in a single point.
Leonardo da Vinci
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Fire destroys all sophistry, that is deceit; and maintains truth alone, that is gold.
Leonardo da Vinci -
The water you touch in a river is the last of that which has passed, and the first of that which is coming. Thus it is with time present.
Leonardo da Vinci -
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 -
The Medici created and destroyed me.
Leonardo da Vinci -
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 -
I give the degrees of things seen by the eye as the musician does of the sounds heard by the ear.
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 -
If you take as your pattern the wings of feathered birds, these are more powerful in structure of bone and sinew because they are penetrable, that is to say the feathers are separated from one another and the air passes through them. But the bat is aided by its membrane, which binds the whole together and is not penetrated by the air.
Leonardo da Vinci -
Let no man who is not a Mathematician read the elements of my work.
Leonardo da Vinci -
Mechanics is the paradise of the mathematical sciences because by means of it one comes to the fruits of mathematics.
Leonardo da Vinci -
Wherever good fortune enters, envy lays siege to the place and attacks it; and when it departs, sorrow and repentance remain behind.
Leonardo da Vinci -
The air which is struck with most swiftness by the movable thing is compressed to the greatest degree in itself.
Leonardo da Vinci
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Many are they who have a taste and love for drawing, but no talent; and this will be discernible in boys who are not diligent and never finish their drawings with shading.
Leonardo da Vinci -
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 -
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 -
The wind which passes through the skins of animals will make men leap up:-That is the bagpipes, which cause men to dance.
Leonardo da Vinci -
Intellectual passion drives out sensuality.
Leonardo da Vinci -
The instant the atmosphere is illuminated it will be filled with an infinite number of images which are produced by the various bodies and colours assembled in it. And the eye is the target, a lodestone, of these images.
Leonardo da Vinci
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Truth at last cannot be hidden. Dissimulation is of no avail. Dissimulation is to no purpose before so great a judge. Falsehood puts on a mask. Nothing is hidden under the sun.
Leonardo da Vinci -
A luminous body will appear more brilliant in proportion as it is surrounded by deeper shadow.
Leonardo da Vinci -
Men born in hot countries love the night because it refreshes them and have a horror of light because it burns them; and therefore they are of the colour of night, that is black. And in cold countries it is just the contrary.
Leonardo da Vinci -
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