Drawing is based upon perspective, which is nothing else than a thorough knowledge of the function of the eye. And this function simply consists in receiving in a pyramid the forms and colours of all the objects placed before it. I say in a pyramid, because there is no object so small that it will not be larger than the spot where these pyramids are received into the eye. Therefore, if you extend the lines from the edges of each body as they converge you will bring them to a single point, and necessarily the said lines must form a pyramid.
Leonardo da Vinci
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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
"The top of the Great Pyramid [.....] there's no capstone on the pyramid. Till the year 2000 celebrations when George Bush [Snr.] and some of these guys put a phony one up there. See, they think they are going to have a new world order, and they probably are."
Kent Hovind
All the art since the Renaissance seemed too men-oriented. I liked (the) object quality. An Egyptian pyramid, a Sung vase, the Romanesque church appealed to me. The forms found in the vaulting of a cathedral or even a splatter of tar on the road seemed more valid and instructive and a more voluptuous experience than either geometric or action painting.
Ellsworth Kelly
All the rays which convey the images of objects through the air are straight lines. Hence, if the images of very large bodies have to pass through very small holes, and beyond these holes recover their large size, the lines must necessarily intersect.
Leonardo da Vinci
The line must follow some direction of policy, whether rooted in logic or experience. Lines should not be drawn simply for the sake of drawing lines.
Felix Frankfurter
Vinci, Leonardo da
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