Quotes about retina (17 quotes) | Quotes of famous people

“Especially is this true where the lynching is accompanied with torture. There are certain hideous sights which when once seen can never be wholly erased from the mental retina. The mere fact of having seen them implies degradation. This is a thousandfold stronger when, instead of merely seeing the deed, the man has participated in it. Whoever in any part of our country has ever taken part in lawlessly putting to death a criminal by the dreadful torture of fire must forever have the awful spectacle of his own handiwork seared into his brain and soul. He can never again be the same man.”

Theodore Roosevelt (1858–1919) American politician, 26th president of the United States

1900s, Letter to Winfield T. Durbin (1903)

Death , Soul , Parting , Country

“And now to explain colours. I suppose that as bodies excite sounds of various tones and consequently vibrations, in the air of various bignesses, so when rays of light by impinging on the stiff refracting superficies excite vibrations in the ether, these rays excite vibrations of various bignesses… therefore, the ends of the capillamenta of the optic nerve which front or face the retina being such refracting superficies, when the rays impinge on them they must there excite these vibrations, which vibrations (like those of sound in a trumpet) will run along the pores or crystalline pith of the capillamenta through the optic nerves into the sensorium (which light itself cannot do), and there, I suppose, affect the sense with various colours, according to their bigness and mixture—the biggest with the strongest colours, reds and yellows; the least with the weakest, blues and violets; middle with green; and a confusion of all with white, much after the manner, that in the sense of hearing, nature makes use of aereal vibrations of several bignesses to generate sounds of divers tones; for the analogy of nature is to be observed.”

Isaac Newton (1643–1727) British physicist and mathematician and founder of modern classical physics

"Hypothesis explaining the Properties of Light" (1675)

Nature , Sense , Light

“If in all ideology men and their circumstances appear upside down as in a camera obscura, this phenomenon arises just as much from their historical life-process as the inversion of objects on the retina does from their physical life-process.”

Karl Marx book The German Ideology

The German Ideology (1845/46)
Context: The fact is, therefore, that definite individuals who are productively active in a definite way enter into these definite social and political relations. Empirical observation must in each separate instance bring out empirically, and without any mystification and speculation, the connection of the social and political structure with production. The social structure and the state are continually evolving out of the life-process of definite individuals, but of individuals, not as they appear in their own or other people's imagination, but as they really are; i. e. as they are effective, produce materially, and are active under definite material limits, presuppositions and conditions independent of their will.
The production of ideas, of conceptions, of consciousness, is at first directly interwoven with the material activity and the material intercourse of men, the language of real life. Conceiving, thinking, the mental intercourse of men, appear at this stage as the direct efflux of their material behaviour. The same applies to mental production as expressed in the language of the politics, laws, morality, religion, metaphysics of a people. Men are the producers of their conception, ideas, etc. — real, active men, as they are conditioned by a definite development of their productive forces and of the intercourse corresponding to these, up to its furthest forms. Consciousness can never be anything else than conscious existence, and the existence of men is their actual life-process. If in all ideology men and their circumstances appear upside down as in a camera obscura, this phenomenon arises just as much from their historical life-process as the inversion of objects on the retina does from their physical life-process.

Life , Men , Appearance

“If a little kid ever asks you just why the sky is blue, you look him or her right in the eye and say, "It's because of quantum effects involving Rayleigh scattering combined with a lack of violet photon receptors in our retinae."”

Philip Plait book Bad Astronomy

Source: Bad Astronomy (2002), p. 47
Source: Bad Astronomy: Misconceptions and Misuses Revealed, from Astrology to the Moon Landing "Hoax"

“That question is so big that there is no end [Albers refers here to the relationship between colors and the source of light]. You see, they have just you cannot participate with it if you have not lubricated your eyes very thoroughly to see the little changes produced in our eye that has another action than any optical apparatus like photography. We must know that we have two ways of seeing. For instance, when we are indoors another part of the retina is engaged compared with when we are outdoors. If we are in warm light or cool light, in higher light or lower light.”

Josef Albers (1888–1976) German-American artist and educator

Homage to the square' (1964), Oral history interview with Josef Albers' (1968)

Color , Way , Question , Light

“Two normal observers viewing the same object from the same place under the same physical circumstances do not necessarily have identical visual experiences, even though the images on their respective retinas may be virtually identical.”

Alan Chalmers book What Is This Thing Called Science?

Source: What Is This Thing Called Science? (Third Edition; 1999), Chapter 1, Science as knowledge derived form the facts of experience, p. 5.

“It was starting to get dim outside, so you got to see your own reflection. And there is the Earth, and you can still see the Earth’s surface and the dark sky overhead. And I could then see my reflection in the window and in the retina of my eye the whole earth and the sky could be seen reflected. So I called all the crew members one by one and they saw it, and they said, 'oh wow'.”

Kalpana Chawla (1962–2003) American astronaut

Asian Week Feb. 7 - Feb 13, 2003 http://asianweek.com/2003_02_07/opinion_emil.html

“When we encounter a face, we view it as a whole, by a process of integration of the parts, which takes place, as some scientists and physicians understand it, in the optic nerves long before any transmission reaches the brain. The otherwise dizzying abundance of information that hits the retina is distilled in this tract of fibers behind the eye into a sign that our intelligence can absorb. When we see a strip of letters, a billboard slogan, for example, we cannot help but read the word; we do not see each letter separately, but rather, instantly, we grasp the whole word and, moreover, its meaning.”

Zia Haider Rahman British novelist

In The Light of what We Know (2014)

Intelligence , Understanding , Reading , Help

“Impressionism was the name given to a certain form of observation when Monet, not content with using his eyes to see what things were or what they looked like as everybody had done before him, turned his attention to noting what took place on his own retina”

John Singer Sargent (1856–1925) American painter

as an oculist would test his own vision
In K.C. Charteris John Sargent http://books.google.co.in/books?id=oInqAAAAMAAJ, C. Scribener's Sons, p.123

“all the light and beauty, all the grandeur and majesty of the universe are unraveled only in the tiny retinas of human beings.”

Varadaraja V. Raman (1932) American physicist

page 199
Truth and Tension in Science and Religion

Beauty , Light , Universe

“Emergence is not really mysterious, although it may be complex. Emergence is brought about by the interactions between the parts of a system. The galloping horse illusion depends upon the persistence of the human retina/brain combination, for instance. Elemental gases bond in combination by sharing outer electrons, thereby altering the appearance and behavior of the combination. In every case of emergence, the source is interaction between the parts — sometimes, as with the brain, very many parts — so that the phenomenon defies simple explanation.”

Derek Hitchins (1935) British systems engineer

Source: Advanced Systems Thinking, Engineering and Management (2003), p. 25

Behavior , Appearance , Horse , Parting

“Colors are ghosts, they only start to exist when light is perceived on the retina as a stimulus and is processed into color perception in our brain.”

Gianni Sarcone (1962) Italian author, artist, designer, and researcher in visual perception and cognitive psychology

Tangente Magazine (2013).

Color , Light

“A profile is never motionless before our eyes, but it constantly appears and disappears. On account of the persistency of an image upon the retina, moving objects constantly multiply themselves; their form changes like rapid vibrations... To paint a human figure you must not paint it; you must render the whole of its surrounding atmosphere.”

Umberto Boccioni (1882–1916) Italian painter and sculptor

As quoted in Futurism, ed. Didier Ottinger; Centre Pompidou / 5 Continents Editions, Milan, 2008, p. 172.
1910, Manifesto of Futurist Painters,' April 1910

Appearance , Change , Painting

“The wonders of nature, she learned, from wing of bee to sonar of bat to eyeball of baby, were not so much perfect machines as adequate contraptions. If nature bespoke a mind, it was a confused and inchoate one, a mind incapable of locating the optic nerve on the correct side of the retina, a mind unable to accomplish much of anything without resort to jerry-building and extinction.”

James K. Morrow book Only Begotten Daughter

Source: Only Begotten Daughter (1990), Chapter 15 (p. 254)

Nature , Learning , Bee , Baby

“Just as in the retina there are myriads of little nerve endings, we are the nerve endings of the universe.”

Alan Watts (1915–1973) British philosopher, writer and speaker

Source: Ways of Liberation: Essays and Lectures on the Transformation of Self (1983), p. 25
Context: We say in popular speech that we come into this world, but we do nothing of the kind. We come out of it. In the same way as the fruit comes out of the tree, the egg from the chicken, and the baby from the womb, we are symptomatic of the universe. Just as in the retina there are myriads of little nerve endings, we are the nerve endings of the universe.

Universe

“Time. Particles of darkness configured mysterious patterns on my retina. Patterns that degenerated without a sound, only to be replaced by new patterns. Darkness but darkness alone was shifting, like mercury in motionless space.”

Haruki Murakami (1949) Japanese author, novelist

Source: A Wild Sheep Chase: A Novel (1982), Chapter 38, And So Time Passes
Context: Time. Particles of darkness configured mysterious patterns on my retina. Patterns that degenerated without a sound, only to be replaced by new patterns. Darkness but darkness alone was shifting, like mercury in motionless space. I put a stop to my thoughts and let time pass. Let time carry me along. Carry me to where a new darkness was configuring yet newer patterns.

Time

“Yeah, our view of reality, the one we conventionally take, is one among many. It’s pretty much a fact that our entire universe is a mental construct. We don’t actually deal with reality directly. We simply compose a picture of reality from what’s going on in our retinas, in the timpani of our ears, and in our nerve endings. We perceive our own perception, and that perception is to us the entirety of the universe. I believe magic is, on one level, the willful attempt to alter those perceptions. Using your metaphor of an aperture, you would be widening that window or changing the angle consciously, and seeing what new vistas it affords you.”

Alan Moore (1953) English writer primarily known for his work in comic books

The Believer interview (2013)

Universe , Reality , Change