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A man was desired to rise from bed, because the sun was already risen. To which he replied: 'If I had as far to go, and as much to do as he has, I should be risen by now; but having but a little way to go, I shall not rise yet.'
Leonardo da Vinci -
Shadow is the diminution alike of light and of darkness, and stands between darkness and light.
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 -
O admirable impartiality of Thine, Thou first Mover; Thou hast not permitted that any force should fail of the order or quality of its necessary results.
Leonardo da Vinci -
Fire destroys falsehood, that is sophistry, and restores truth, driving out darkness.
Leonardo da Vinci -
The spirit has no voice, because where there is a voice there is a body, and where there is a body space is occupied, and this prevents the eye from seeing what is placed behind that space; hence the surrounding air is filled by the body, that is by its image.
Leonardo da Vinci -
The sun gives spirit and life to plants and the earth nourishes them with moisture.
Leonardo da Vinci -
Avoid studies of which the result dies with the worker.
Leonardo da Vinci
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Where there is most power of feeling, there of martyrs is the greatest martyr.
Leonardo da Vinci -
To enjoy-to love a thing for its own sake and for no other reason.
Leonardo da Vinci -
I ask how far away the eye can discern a non-luminous body, as, for instance, a mountain. It will be very plainly visible if the sun is behind it; and could be seen at a greater or less distance according to the sun's place in the sky.
Leonardo da Vinci -
Movement will cease before we are weary of being useful.
Leonardo da Vinci -
I ask at what part of its curved motion the moving cause will leave the thing moved and moveable.
Leonardo da Vinci -
The function which the wing performs against the air when the air is motionless is the same as that of the air moved against the wings when these are without motion.
Leonardo da Vinci
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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 -
A point is not part of a line.
Leonardo da Vinci -
Since the wings are swifter to press the air than the air is to escape from beneath the wings the air becomes condensed and resists the movement of the wings; and the motive power of these wings by subduing the resistance of the air raises itself in a contrary movement to the movement of the wings.
Leonardo da Vinci -
The Book of the science of Mechanics must precede the Book of useful inventions.
Leonardo da Vinci -
Nothing is so much to be feared as Evil Report.
Leonardo da Vinci -
Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.
Leonardo da Vinci
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The boundaries of bodies are the least of all things. The proposition is proved to be true, because the boundary of a thing is a surface, which is not part of the body contained within that surface; nor is it part of the air surrounding that body, but is the medium interposted between the air and the body, as is proved in its place.
Leonardo da Vinci -
Truth here makes Falsehood torment lying tongues.
Leonardo da Vinci -
Where there is most feeling, there is the greatest martyrdom.
Leonardo da Vinci -
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