Quotes about dimension

A collection of quotes on the topic of dimension, time, timing, other.

Quotes about dimension

José Baroja photo
Sadhguru photo
Pierre Bonnard photo

“It would bother me if my canvases were stretched onto a frame. I never know in advance what dimensions I am going to choose.”

Pierre Bonnard (1867–1947) French painter and printmaker

Dita Amory, in Pierre Bonnard: The Late Still Lifes and Interiors; Yale University Press, New Haven, 2009 - ISBN 978-0-300-14889-3, p. 4
Bonnard started to paint usually on an unstretched canvas

Charlie Chaplin photo

“My faith is in the unknown, in all that we do not understand by reason; I believe that what is beyond our comprehension is a simple fact in other dimensions,”

My Autobiography, p. 291
Context: I believe that faith is a precursor of all our ideas. Without faith, there never could have evolved hypothesis, theory, science or mathematics. I believe that faith is an extension of the mind. It is the key that negates the impossible. To deny faith is to refute oneself and the spirit that generates all our creative forces. My faith is in the unknown, in all that we do not understand by reason; I believe that what is beyond our comprehension is a simple fact in other dimensions, and that in the realm of the unknown there is an infinite power for good.

Sadhguru photo

“This is an attempt to create a space that will witness mystical dimensions”

Sadhguru (1957) Yogi, mystic, visionary and humanitarian

Isha Insights Magazine, Spring Edition 2009
Sourced from newspapers and magazines
Context: This is an attempt to create a space that will witness mystical dimensions that have never been witnessed in this part of the world. -Sadhguru (on Isha Institute of Inner Sciences, McMinnville, TN USA)

Charles Bukowski photo
Joseph Campbell photo

“Eternity isn't some later time. Eternity isn't a long time. Eternity has nothing to do with time. Eternity is that dimension of here and now which thinking and time cuts out. This is it. And if you don't get it here, you won't get it anywhere. And the experience of eternity right here and now is the function of life.”

Episode 2, Chapter 13-14
The Power of Myth (1988)
Context: Campbell: Eternity isn't some later time. Eternity isn't a long time. Eternity has nothing to do with time. Eternity is that dimension of here and now which thinking and time cuts out. This is it. And if you don't get it here, you won't get it anywhere. And the experience of eternity right here and now is the function of life. There's a wonderful formula that the Buddhists have for the Bodhisattva, the one whose being (sattva) is illumination (bodhi), who realizes his identity with eternity and at the same time his participation in time. And the attitude is not to withdraw from the world when you realize how horrible it is, but to realize that this horror is simply the foreground of a wonder and to come back and participate in it. "All life is sorrowful" is the first Buddhist saying, and it is. It wouldn't be life if there were not temporality involved which is sorrow. Loss, loss, loss.
Moyers: That's a pessimistic note.
Campbell: Well, you have to say yes to it, you have to say it's great this way. It's the way God intended it.

Albert Einstein photo

“I see a clock, but I cannot envision the clockmaker. The human mind is unable to conceive of the four dimensions, so how can it conceive of a God, before whom a thousand years and a thousand dimensions are as one?”

Albert Einstein (1879–1955) German-born physicist and founder of the theory of relativity

From Cosmic Religion: with Other Opinions and Aphorisms (1931), Albert Einstein, pub. Covici-Friede. Quoted in The Expanded Quotable Einstein, Princeton University Press; 2nd edition (May 30, 2000); Page 208, ISBN 0691070210
1930s

G. H. Hardy photo

“Mathematicians have constructed a very large number of different systems of geometry, Euclidean or non-Euclidean, of one, two, three, or any number of dimensions. All these systems are of complete and equal validity. They embody the results of mathematicians' observations of their reality, a reality far more intense and far more rigid than the dubious and elusive reality of physics. The old-fashioned geometry of Euclid, the entertaining seven-point geometry of Veblen, the space-times of Minkowski and Einstein, are all absolutely and equally real. …There may be three dimensions in this room and five next door. As a professional mathematician, I have no idea; I can only ask some competent physicist to instruct me in the facts.
The function of a mathematician, then, is simply to observe the facts about his own intricate system of reality, that astonishingly beautiful complex of logical relations which forms the subject-matter of his science, as if he were an explorer looking at a distant range of mountains, and to record the results of his observations in a series of maps, each of which is a branch of pure mathematics. …Among them there perhaps none quite so fascinating, with quite the astonishing contrasts of sharp outline and shade, as that which constitutes the theory of numbers.”

G. H. Hardy (1877–1947) British mathematician

"The Theory of Numbers," Nature (Sep 16, 1922) Vol. 110 https://books.google.com/books?id=1bMzAQAAMAAJ p. 381

Otto Dix photo

“I had the feeling that there was a dimension of reality that had not been dealt with in art: the dimension of ugliness.”

Otto Dix (1891–1969) German painter and printmaker

Otto Dix quoted by Eva Karcher, in Otto Dix, New York: Crown Publishers, 1987, p. 41; as cited by Roy Forward, in 'Education resource material: beauty, truth and goodness in Dix's War' https://nga.gov.au/dix/edu.pdf, p. 9

Yves Klein photo
Michio Kaku photo
Sadhguru photo
Sadhguru photo

“Move out or grow in any dimension and pain as well as joy will be your reward. A full life will be full of pain.”

M. Scott Peck (1936–2005) American psychiatrist

Source: The Road Less Traveled: A New Psychology of Love, Traditional Values, and Spiritual Growth

Virginia Woolf photo
Stephen Hawking photo

“Time and space are finite in extent, but they don't have any boundary or edge. They would be like the surface of the earth, but with two more dimensions.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

Source: Black Holes and Baby Universes

Sadhguru photo
Sadhguru photo
Stephen Hawking photo
Eckhart Tolle photo
Anthony Giddens photo
J. J. Thomson photo

“We see from Lenard's table that a cathode ray can travel through air at atmospheric pressure a distance of about half a centimetre before the brightness of the phosphorescence falls to about half its original value. Now the mean free path of the molecules of air at this pressure is about 10-5 cm., and if a molecule of air were projected it would lose half its momentum in a space comparable with the mean free path. Even if we suppose that it is not the same molecule that is carried, the effect of the obliquity of the collisions would reduce the momentum to half in a short multiple of that path. Thus, from Lenard's experiments on the absorption of the rays outside the tube, it follows on the hypothesis that the cathode rays are charged particles moving with high velocities, that the size of the carriers must be small compared with the dimensions of ordinary atoms or molecules. The assumption of a state of matter more finely subdivided than the atom of an element is a somewhat startling one; but a hypothesis that would involve somewhat similar consequences—viz. that the so-called elements are compounds of some primordial element—has been put forward from time to time by various chemists.”

J. J. Thomson (1856–1940) British physicist

Royal Institution Lecture (April 30, 1897) as quoted by Edmund Taylor Whittaker, A History of the Theories of Aether and Electricity from the Age of Descartes to the Close of the Nineteenth Century http://books.google.com/books?id=CGJDAAAAIAAJ (1910).
Quotes eat me

Piet Mondrian photo
H.P. Lovecraft photo

“I do differ from you radically in respect to familiar things & scenes; for I always demand close correlation with the landscape & historic stream to which I belong, & would feel completely lost in infinity without a system of reference-points based on known & accustomed objects. I take complete relativity so much for granted, that I cannot conceive of anything as existing in itself in any recognisable form. What gives things an aspect & quasi-significance to us is the fact that we view things consistently from a certain artificial & fortuitous angle. Without the preservation of that angle, coherent consciousness & entity itself becomes inconceivable. Thus my wish for freedom is not so much a wish to put all terrestrial things behind me & plunge forever into abysses beyond light, matter, & energy. That, indeed, would mean annihilation as a personality rather than liberation. My wish is perhaps best defined as a wish for infinite visioning & voyaging power, yet without loss of the familiar background which gives all things significance. I want to know what stretches Outside, & be able to visit all the gulfs & dimensions beyond Space & Time. I want, too, to juggle the calendar at will; bringing things from the immemorial past down into the present, & making long journeys into the forgotten years. But I want the familiar Old Providence of my childhood as a perpetual base for these necromancies & excursions—& in a good part of these necromancies & excursions I want certain transmuted features of Old Providence to form part of the alien voids I visit or conjure up. I am as geographic-minded as a cat—places are everything to me. Long observation has shewn me that no other objective experience can give me even a quarter of the kick I can extract from the sight of a fresh landscape or urban vista whose antiquity & historic linkages are such as to correspond with certain fixed childhood dream-patterns of mine. Of course my twilight cosmos of half-familiar, fleetingly remembered marvels is just as unattainable as your Ultimate Abysses—this being the real secret of its fascination. Nothing really known can continue to be acutely fascinating—the charm of many familiar things being mainly resident in their power to symbolise or suggest unknown extensions & overtones.”

H.P. Lovecraft (1890–1937) American author

Letter to Clark Ashton Smith (7 November 1930), in Selected Letters III, 1929-1931 edited by August Derleth and Donald Wandrei, p. 214
Non-Fiction, Letters

Oliver Wendell Holmes photo
Anthony Kennedy photo
Jordan Peterson photo

“One of the things you want to do with a conception like compassion is that you want to start thinking about it like a psychologist, or like a scientist, because compassion is actually definable. The easiest way to approach it is to think about it in Big-5 terms, because it maps onto Agreeableness, which you can break down into Compassion and Politeness. The liberal types, especially the Social Justice types, are way higher in Compassion. It's actually their fundamental characteristic. You might think, 'well, compassion is a virtue.' Yes, it's a virtue, but any uni-dimensional virtue immediately becomes a vice, because real virtue is the intermingling of a number of virtues and their integration into a functional identity that can be expressed socially. Compassion can be great if you happen to be the entity towards which it is directed. But compassion tends to divide the world into crying children and predatory snakes. So if you're a crying child, hey great. But if you happen to be identified as one of the predatory snakes, you better look the hell out. Compassion is what the mother grizzly bear feels for her cubs while she eats you because you got in the way. We don't want to be thinking for a second that compassion isn't a virtue that can lead to violence, because it certainly can. The other problem with compassion - this is why we have conscientiousness - there's five canonical personality dimensions. Agreeableness is good if you are functioning in a kin system. You want to distribute resources equally for example among your children, because you want all of them to have the same chance, and even roughly the same outcome. That is, a good one. But the problem is that you can't extend that moral network to larger groups. As far as I can tell, you need conscientiousness, which is a much colder virtue. It's also a virtue that is much more concerned with larger structures over the longer period of time. And you can think about conscientiousness as a form of compassion too. It's like: 'straighten the hell out, and work hard and your life will go well. I don't care how you feel about that right now.' Someone who's cold, that is, low in agreeableness and high in conscientiousness, will tell you every time. 'Don't come whining to me. I don't care about your hurt feelings. Do your goddamn job or you're going to be out on the street.' One might think, 'Oh that person is being really hard on me.' Not necessarily. They might have your long term best interest in mind. You're fortunate if you come across someone who is disagreeable. Not tyrannically disagreeable, but moderately disagreeable and high in conscientiousness because they will whip you into shape. And that's really helpful. You'll admire people like that. You won't be able to help it. You'll feel like, 'Oh wow, this person has actually given me good information, even though you will feel like a slug after they have taken you apart.' That's the compassion issue. You can't just transform that into a political stance. I think part of what we're seeing is actually the rise of a form of female totalitarianism, because we have no idea what totalitarianism would be like if women ran it, because that's never happened before in the history of the planet. And so, we've introduced women into the political sphere radically over the past fifty years. We have no idea what the consequence of that is going to be. But we do know from our research, which is preliminary, that agreeableness really predicts political correctness, but female gender predicts over and above the personality trait, and that's something we found very rarely in our research. Usually the sex differences are wiped out by the personality differences, but not in this particular case. On top of that, women are getting married later, and they're having children much later, and they're having fewer of them, and so you also have to wonder what their feminine orientation is doing with itself in the interim, roughly speaking. A lot of it is being expressed as political opinion. Fair enough. That's fine. But it's not fine when it starts to shut down discussion.”

Jordan Peterson (1962) Canadian clinical psychologist, cultural critic, and professor of psychology

Concepts

Stephen Hawking photo

“Evolution has ensured that our brains just aren't equipped to visualise 11 dimensions directly. However, from a purely mathematical point of view it's just as easy to think in 11 dimensions, as it is to think in three or four.”

Stephen Hawking (1942–2018) British theoretical physicist, cosmologist, and author

As quoted in "Return of the time lord" in The Guardian http://books.guardian.co.uk/departments/scienceandnature/story/0,6000,1579384,00.html (27 September 2005)

John Ronald Reuel Tolkien photo
H.P. Lovecraft photo
Oswald Spengler photo

“p>To the new International that is now in the irreversible process of preparation we can contribute the ideas of worldwide organization and the world state; the English can suggest the idea of worldwide exploitation and trusts; the French can offer nothing….
Thus we find two great economic principles opposed to each other in the modern world. The Viking has become a free-tradesman; the Teutonic knight is now an administrative official. There can be no reconciliation. Each of these principles is proclaimed by a German people, Faustian men par excellence. Neither can accept a restriction of its will, and neither can be satisfied until the whole world has succumbed to its particular idea. This being the case, war will be waged until one side gains final victory. Is world economy to be worldwide exploitation, or worldwide organization? Are the Caesars of the coming empire to be billionaires or universal administrators? Shall the population of the earth, so long as this empire of Faustian civilization holds together, be subjected to cartels and trusts, or to men such as those envisioned in the closing pages of Goethe’s Faust, Part II? Truly, the destiny of the world is at stake….
This brings us to the political aspects of the English-Prussian antithesis. Politics is the highest and most powerful dimension of all historical existence. World history is the history of states; the history of states is the history of wars. Ideas, when they press for decisions, assume the form of political units: countries, peoples, or parties. They must be fought over not with words but with weapons. Economic warfare becomes military warfare between countries or within countries. Religious associations such as Jewry and Islam, Huguenots and Mormons, constitute themselves as countries when it becomes a matter of their continued existence or their success. Everything that proceeds from the innermost soul to become flesh or fleshly creation demands a sacrifice of flesh in return. Ideas that have become blood demand blood. War is the eternal pattern of higher human existence, and countries exist for war’s sake; they are signs of readiness for war. And even if a tired and blood-drained humanity desired to do away with war, like the citizens of the Classical world during its final centuries, like the Indians and Chinese of today, it would merely exchange its role of war-wager for that of the object about and with which others would wage war. Even if a Faustian universal harmony could be attained, masterful types on the order of late Roman, late Chinese, or late Egyptian Caesars would battle each other for this Empire—for the possession of it, if its final form were capitalistic; or for the highest rank in it, if it should become socialistic.”

Oswald Spengler (1880–1936) German historian and philosopher

Prussianism and Socialism (1919)

Leonardo Da Vinci photo
Eckhart Tolle photo
Elias James Corey photo
Pope Francis photo
Leon Trotsky photo
John Ronald Reuel Tolkien photo
Albert Einstein photo
Simon Armitage photo
Shiing-Shen Chern photo
Mark Twain photo
Isaac Newton photo

“But the Moderns advancing yet much farther, have receiv'd into Geometry all Lines that can be express'd by Æquations, and have distinguish'd, according to the Dimensions of the Æquations, those Lines into Kinds; and have made it a Law, that you are not to construct a Problem by a Line of a superior Kind, that may be constructed by one of an inferior one.”

Arithmetica Universalis (1707)
Context: The Antients, as we learn from Pappus, in vain endeavour'd at the Trisection of an Angle, and the finding out of two mean Proportionals by a right line and a Circle. Afterwards they began to consider the Properties of several other Lines. as the Conchoid, the Cissoid, and the Conick Sections, and by some of these to solve these Problems. At length, having more throughly examin'd the Matter, and the Conick Sections being receiv'd into Geometry, they distinguish'd Problems into three Kinds: viz. (1.) Into Plane ones, which deriving their Original from Lines on a Plane, may be solv'd by a right Line and a Circle; (2.) Into Solid ones, which were solved by Lines deriving their Original from the Consideration of a Solid, that is, of a Cone; (3.) And Linear ones, to the Solution of which were requir'd Lines more compounded. And according to this Distinction, we are not to solve solid Problems by other Lines than the Conick Sections; especially if no other Lines but right ones, a Circle, and the Conick Sections, must be receiv'd into Geometry. But the Moderns advancing yet much farther, have receiv'd into Geometry all Lines that can be express'd by Æquations, and have distinguish'd, according to the Dimensions of the Æquations, those Lines into Kinds; and have made it a Law, that you are not to construct a Problem by a Line of a superior Kind, that may be constructed by one of an inferior one. In the Contemplation of Lines, and finding out their Properties, I like their Distinction of them into Kinds, according to the Dimensions thy Æquations by which they are defin'd. But it is not the Æquation, but the Description that makes the Curve to be a Geometrical one.<!--pp.227-228

Vangelis photo

“When I’m writing music for a film, inspiration will come from the subject matter and visual images, because I don’t agree to any offers of film work unless I believe I can add another dimension to the film. But if l’m writing music purely for myself, inspiration comes naturally, from everything around”

Vangelis (1943) Greek composer of electronic, progressive, ambient, jazz, pop rock, and orchestral music

1984
Context: On inspiration: "Of course, inspiration can come in different ways, depending on what field you’re working in? When I’m writing music for a film, inspiration will come from the subject matter and visual images, because I don’t agree to any offers of film work unless I believe I can add another dimension to the film. But if l’m writing music purely for myself, inspiration comes naturally, from everything around. I absorb every experience in life, every situation, because anything can become a source of inspiration — positive or negative. In general l’m influenced more by everyday concepts — nature, the city and so forth — than by hearing other pieces of music. Neither do I find any special inspiration from working in a studio. Obviously it makes life a lot easier to have 24 tracks to record on, and I use the studio as a tool to help in the writing process. I see the mixing desk really as another instrument, the conductor for all the others. But although the tape recorder and the console are just as important as the keyboards, I haven’t equipped my studio with a lot of hi-tech effects: l’d rather spend time searching through my sound library to get the exact colour I want".

Walt Disney photo

“Fantasy, if it's really convincing, can't become dated, for the simple reason that it represents a flight into a dimension that lies beyond the reach of time.”

Walt Disney (1901–1966) American film producer and businessman

As quoted in "The Rides of Passage" in Via magazine (July 2005)
Context: Fantasy, if it's really convincing, can't become dated, for the simple reason that it represents a flight into a dimension that lies beyond the reach of time. In this new dimension, whatever it is, nothing corrodes or gets run down at the heel or gets to look ridiculous like, say, the celluloid collar or the bustle.

Arthur Stanley Eddington photo

“We are saved the difficulty of imagining how the processes of life can go on in two dimensions, because nothing goes on.”

Arthur Stanley Eddington (1882–1944) British astrophysicist

Space, Time and Gravitation (1920)
Context: It is of interest to inquire what happens when the aviator's speed... approximates to the velocity of light. Lengths in the direction of flight become smaller and smaller, until for the speed of light they shrink to zero. The aviator and the objects accompanying him shrink to two dimensions. We are saved the difficulty of imagining how the processes of life can go on in two dimensions, because nothing goes on. Time is arrested altogether. This is the description according to the terrestrial observer. The aviator himself detects nothing unusual; he does not perceive that he has stopped moving. He is merely waiting for the next instant to come before making the next movement; and the mere fact that time is arrested means that he does not perceive that the next instant is a long time coming.<!--p.26

Alan Watts photo
H.P. Lovecraft photo

“I really agree that Yog-Sothoth is a basically immature conception, & unfitted for really serious literature. The fact is, I have never approached serious literature yet. But I consider the use of actual folk-myths as even more childish than the use of new artificial myths, since in the former one is forced to retain many blatant peurilities & contradictions of experienced which could be subtilised or smoothed over if the supernaturalism were modelled to order for the given case. The only permanently artistic use of Yog-Sothothery, I think, is in symbolic or associative phantasy of the frankly poetic type; in which fixed dream-patterns of the natural organism are given an embodiment & crystallisation... But there is another phase of cosmic phantasy (which may or may not include frank Yog-Sothothery) whose foundations appear to me as better grounded than those of ordinary oneiroscopy; personal limitations regarding the sense of outsideness. I refer to the aesthetic crystallisation of that burning & inextinguishable feeling of mixed wonder & oppression which the sensitive imagination experiences upon scaling itself & its restrictions against the vast & provocative abyss of the unknown. This has always been the chief emotion in my psychology; & whilst it obviously figures less in the psychology of the majority, it is clearly a well-defined & permanent factor from which very few sensitive persons are wholly free.... Reason as we may, we cannot destroy a normal perception of the highly limited & fragmentary nature of our visible world of perception & experience as scaled against the outside abyss of unthinkable galaxies & unplumbed dimensions—an abyss wherein our solar system is the merest dot... The time has come when the normal revolt against time, space, & matter must assume a form not overtly incompatible with what is known of reality—when it must be gratified by images forming supplements rather than contradictions of the visible & measurable universe. And what, if not a form of non-supernatural cosmic art, is to pacify this sense of revolt—as well as gratify the cognate sense of curiosity?”

H.P. Lovecraft (1890–1937) American author

Letter to Frank Belknap Long (27 February 1931), in Selected Letters III, 1929-1931 edited by August Derleth and Donald Wandrei, p. 293
Non-Fiction, Letters, to Frank Belknap Long

Steven Weinberg photo
Eckhart Tolle photo
Laozi photo

“The key to growth is the introduction of higher dimensions of consciousness into our awareness.”

Laozi (-604) semi-legendary Chinese figure, attributed to the 6th century, regarded as the author of the Tao Te Ching and fou…
Carl Hiaasen photo
Karl Marx photo

“What do you think of the aspect of the money market? … This time, by the by, the thing has assumed European dimensions such as have never been seen before, and I don't suppose we'll be able to spend much longer here merely as spectators. The very fact that I've at last got round to setting up house again and sending for my books seems to me to prove that the 'mobilisation' of our persons is AT HAND.”

Karl Marx (1818–1883) German philosopher, economist, sociologist, journalist and revolutionary socialist

Source: Letter to Friedrich Engels (26 September 1856), quoted in The Collected Works of Karl Marx and Friedrich Engels: Volume 40. Letters 1856–59 (2010), pp. 71–72

Eckhart Tolle photo
Eckhart Tolle photo
Hanif Kureishi photo

“Our lives can only be lived forward and understood backwards. Living a life and understanding it occupy different dimensions.”

Hanif Kureishi (1954) English playwright, screenwriter, novelist

Source: Collected Stories

Ray Bradbury photo

“I think that this scene is upsetting because it calls us beyond fact into the vast world of imagination, and imagination is a word of many dimensions.”

Madeleine L'Engle (1918–2007) American writer

Acceptance Speech for the Margaret Edwards Award (1998)
Source: A Circle of Quiet
Context: In Kenneth Grahame's beautiful book, The Wind In The Willows, Mole and Rat go to the holy island of the great god, Pan. It is a superb piece of religious writing, but because it has gone beyond fact, it is deeply upsetting and untruthful to some people. If a story is not specified as being Christian, it is not Christian. But that is not so.
I think that this scene is upsetting because it calls us beyond fact into the vast world of imagination, and imagination is a word of many dimensions.

Steven Wright photo
Ali Smith photo
Milan Kundera photo
Isabel Allende photo
Ellen Glasgow photo
Margaret Atwood photo
Ralph Waldo Emerson photo
Terence McKenna photo
Václav Havel photo
Eoin Colfer photo

“No matter what dimension you're in, there's a big-headed male trying to take over the world.”

Eoin Colfer (1965) Irish author of children's books

Source: The Lost Colony

Frantz Fanon photo
Maurice Merleau-Ponty photo
Michael Cunningham photo
Alvin Toffler photo

“By instructing students how to learn, unlearn and relearn, a powerful new dimension can be added to education.”

Alvin Toffler (1928–2016) American writer

Future Shock (1970), ch. 18
Source: Powershift: Knowledge, Wealth, and Power at the Edge of the 21st Century

Ayn Rand photo
Lois McMaster Bujold photo
Barry Schwartz photo

“CHOOSING WELL IS DIFFICULT, AND MOST DECISIONS HAVE SEVERAL different dimensions.”

Barry Schwartz (1946) American psychologist

The Paradox of Choice: Why More Is Less

Nayef Al-Rodhan photo
Ray Kurzweil photo
Kurien Kunnumpuram photo
Jacques Lipchitz photo
David Gross photo

“Dimensions are not connected with the efficiency of the system; they simply make it more difficult.”

Constantinos Apostolou Doxiadis (1914–1975) Greek architect

Source: Building Entopia - 1975, Chapter 2, The great danger, p. 21

Philip K. Dick photo
Charles Proteus Steinmetz photo
Carl Barus photo
Fritjof Capra photo
Jonathan Miller photo
René Girard photo
Jane Roberts photo
Gay Talese photo