"There are three classes of people: those who see. Those who see when they are shown. Those who do not see."
Time stays long enough for anyone who will use it.
Poor is the pupil who does not surpass his master
Simplicity is the ultimate sophistication.
Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity
Italian Renaissance polymath (1452−1519)
Leonardo di ser Piero da Vinci (15 April 1452 – 2 May 1519) was an Italian Renaissance painter, architect, inventor, engineer, sculptor, and musician. His best known painting is the Mona Lisa.
From: Wikiquote (CC BY-SA 4.0)
Alternative Names:
Leonardo di ser Piero da Vinci
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Leonardo
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da Vinci
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Leonard
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Léonard
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Leonardo Da Vinci
From Wikidata (CC0)
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He recorded these thoughts at the instant of their birth, for a constant habit of observation and analysis had early developed with him into a second nature. His ideas were penned in the same fragmentary way as they presented themselves to his mind, perhaps with no intention of publishing them to the world. But his ideal of art depended intimately, none the less, on the system he had thrown out seemingly in so haphazard a manner. His method gives to his writings their only unity. It was more than a method: it was a permanent expression of his own life, which aided him to construct a philosophy of beauty characteristic of the new age.
A shadow may be infinitely dark, and also of infinite degrees of absence of darkness. The beginnings and ends of shadow lie between the light and darkness and may be infinitely diminished and infinitely increased. Shadow is the means by which bodies display their form. The forms of bodies could not be understood in detail but for shadow.
Light is the chaser away of darkness. Shade is the obstruction of light. Primary light is that which falls on objects and causes light and shade. And derived lights are those portions of a body which are illuminated by the primary light. A primary shadow is that side of a body on which the light cannot fall.