--- title: "Meaning & Key Takeaway of: Mathematics catalogues everything that is…" description: "\"Mathematics catalogues everything that is not self-contradictory; within that vast inventory, physics is an island of structures rich enough to contain..." image: "https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg" --- # Mathematics catalogues everything that is not… ![“Mathematics catalogues everything that is not self-contradictory; within that vast inventory, physics is an island of structures rich enough to contain their own beholders.” quote by Greg Egan](https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg) [Download](https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg) [Open image](https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg) > “Mathematics catalogues everything that is not self-contradictory; within that vast inventory, physics is an island of structures rich enough to contain their own beholders.” [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Mathematics describes all consistent possibilities; physics is a self‑contained subset that can model its own observers. **In simple terms:** Math covers all logical worlds; physics is a self‑referential island. Key Takeaway Recognize physics as a special, self‑consistent framework. Themes philosophy science metaphysics logic Mood contemplative analytical Type philosophical scientific When to use this quote - theoretical research - education - philosophical debate - model building Key Concepts self‑reference structure consistency Questions to Reflect On - How does physics reflect its own assumptions? - Can mathematics exist without physical interpretation? A Different Perspective Physics may not capture phenomena beyond mathematical consistency. ★ ★ ★ ★ ★ No ratings yet [Islands](https://sms4smile.com/quotes/about/islands/) [Mathematics](https://sms4smile.com/quotes/about/mathematics/) [Physics](https://sms4smile.com/quotes/about/physics/) [Self](https://sms4smile.com/quotes/about/self/) [Structure](https://sms4smile.com/quotes/about/structure/) ## Related quotes > [Gasoline inventories are tighter than they were a few weeks ago. It's all about perception, because inventories are well above where they have been…](https://sms4smile.com/quotes/kyle-cooper/gasoline-inventories-are-tighter-than-they-were-a-few-weeks-ago-it-s/) Kyle Cooper > [Books of natural history aim commonly to be hasty schedules, or inventories of God's property, by some clerk. They do not in the least…](https://sms4smile.com/quotes/henry-david-thoreau/books-of-natural-history-aim-commonly-to-be-hasty-schedules-or/) [Henry David Thoreau](https://sms4smile.com/quotes/author/henry-david-thoreau/) > [One out of every six American women has so much mercury in her womb that her children are at risk for a grim inventory…](https://sms4smile.com/quotes/robert-f-kennedy-jr/one-out-of-every-six-american-women-has-so-much-mercury-in-her-womb/) [Robert F. Kennedy, Jr](https://sms4smile.com/quotes/author/robert-f-kennedy-jr/) > [We want to turn our inventory faster than our people.](https://sms4smile.com/quotes/james-sinegal/we-want-to-turn-our-inventory-faster-than-our-people/) [James Sinegal](https://sms4smile.com/quotes/author/james-sinegal/) > [The more inventory a company has, the less likely they will have what they need.](https://sms4smile.com/quotes/taiichi-ohno/the-more-inventory-a-company-has-the-less-likely-they-will-have-what/) [Taiichi Ohno](https://sms4smile.com/quotes/author/taiichi-ohno/) > [You could say that this book is ripped from the headlines, but that wouldn't be fair. Bret Anthony Johnston's riveting novel picks up where…](https://sms4smile.com/quotes/tom-perrotta/you-could-say-that-this-book-is-ripped-from-the-headlines-but-that/) [Tom Perrotta](https://sms4smile.com/quotes/author/tom-perrotta/) > [I don't do much more than organise other people's ideas and insights and thoughts, and sort of harvest them, and inventory them and present…](https://sms4smile.com/quotes/chuck-palahniuk/i-don-t-do-much-more-than-organise-other-people-s-ideas-and-insights/) [Chuck Palahniuk](https://sms4smile.com/quotes/author/chuck-palahniuk/) > [Take inventory of what you have to offer. Place a value on it. Respect it - because if you don't respect what you have…](https://sms4smile.com/quotes/nancy-pelosi/take-inventory-of-what-you-have-to-offer-place-a-value-on-it-respect/) [Nancy Pelosi](https://sms4smile.com/quotes/author/nancy-pelosi/) > [Nearly every business collects metrics on inventory, sales, and workplace process. Health care has been slow to measure these kinds of outcomes. Increasingly, general…](https://sms4smile.com/quotes/thomas-r-insel/nearly-every-business-collects-metrics-on-inventory-sales-and/) [Thomas R. Insel](https://sms4smile.com/quotes/author/thomas-r-insel/) > [With my recovery programme, I have to do a daily inventory of how my day has been. I am terribly dyslexic and have attention…](https://sms4smile.com/quotes/ozzy-osbourne/with-my-recovery-programme-i-have-to-do-a-daily-inventory-of-how-my/) [Ozzy Osbourne](https://sms4smile.com/quotes/author/ozzy-osbourne/) > [Of course there are influences, of course there are things that are inspiring, but it's weird to think that I'm trying to keep a…](https://sms4smile.com/quotes/emily-haines/of-course-there-are-influences-of-course-there-are-things-that-are/) [Emily Haines](https://sms4smile.com/quotes/author/emily-haines/) > [Don't kid yourself. Be honest with yourself. Take your own inventory.](https://sms4smile.com/quotes/jack-canfield/don-t-kid-yourself-be-honest-with-yourself-take-your-own-inventory/) [Jack Canfield](https://sms4smile.com/quotes/author/jack-canfield/) > [I was always a kid trying to make a buck. I borrowed a dollar from my dad, went to the penny candy store, bought…](https://sms4smile.com/quotes/guy-fieri/i-was-always-a-kid-trying-to-make-a-buck-i-borrowed-a-dollar-from-my/) [Guy Fieri](https://sms4smile.com/quotes/author/guy-fieri/) > [“This might not sound very exciting (inventory management is not something that tends to rivet readers), but think of it this way: Imagine walking…](https://sms4smile.com/quotes/james-c-collins/this-might-not-sound-very-exciting-inventory-management-is-not/) [James C. Collins](https://sms4smile.com/quotes/author/james-c-collins/) > [As we begin to plan for a new human society, we need to foster common values about clean air, water, and other elements of…](https://sms4smile.com/quotes/jacque-fresco/as-we-begin-to-plan-for-a-new-human-society-we-need-to-foster-common/) [Jacque Fresco](https://sms4smile.com/quotes/author/jacque-fresco/) ## More by Greg Egan > [“Paul closed his eyes and turned his face to the sun. In spite of everything, it was hard not to take solace from the…](https://sms4smile.com/quotes/greg-egan/paul-closed-his-eyes-and-turned-his-face-to-the-sun-in-spite-of/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“I was recruited by the dead,’ Zak said. ‘Not in any rush to join them in their silence, but from the urgent need to…](https://sms4smile.com/quotes/greg-egan/i-was-recruited-by-the-dead-zak-said-not-in-any-rush-to-join-them-in/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“You have to be doubly foolish to be a Satanist,” Stoney muttered. “Doubly?” “Not only do you need to believe all the nonsense of…](https://sms4smile.com/quotes/greg-egan/you-have-to-be-doubly-foolish-to-be-a-satanist-stoney-muttered-doubly/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“Fleshers used to spin fantasies about aliens arriving to ‘conquer’ Earth, to steal their ‘precious’ physical resources, to wipe them out for fear of…](https://sms4smile.com/quotes/greg-egan/fleshers-used-to-spin-fantasies-about-aliens-arriving-to-conquer/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [Australian SF book publishing has undergone a boom recently, and sometimes it's easier for new writers to sell a book to a local publisher…](https://sms4smile.com/quotes/greg-egan/australian-sf-book-publishing-has-undergone-a-boom-recently-and/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“If the technology improves sufficiently, the environmental impact of the wealthiest Copy could end up being less than that of the most ascetic living…](https://sms4smile.com/quotes/greg-egan/if-the-technology-improves-sufficiently-the-environmental-impact-of/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [I'm rarely grabbed by anything the way I was when I was 10 years younger. About the only relatively new artists whose albums I…](https://sms4smile.com/quotes/greg-egan/i-m-rarely-grabbed-by-anything-the-way-i-was-when-i-was-10-years/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [If we spend all our time gazing at the wonders ahead without remembering where we're standing right now, we're going to trip and fall…](https://sms4smile.com/quotes/greg-egan/if-we-spend-all-our-time-gazing-at-the-wonders-ahead-without/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“The Transmuters had built a structure that dwarfed universes, but touched each one only lightly. They hadn’t turned whole worlds to rubble, they hadn’t…](https://sms4smile.com/quotes/greg-egan/the-transmuters-had-built-a-structure-that-dwarfed-universes-but/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“I have no strength now to speak of my loss of strength.”](https://sms4smile.com/quotes/greg-egan/i-have-no-strength-now-to-speak-of-my-loss-of-strength/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“The only way up is up.”](https://sms4smile.com/quotes/greg-egan/the-only-way-up-is-up/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“My earliest memories are of CP4 — that's a Kähler manifold that looks locally like a vector space with four complex directions, though the…](https://sms4smile.com/quotes/greg-egan/my-earliest-memories-are-of-cp4-that-s-a-k-hler-manifold-that-looks/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“We’ve been half right about a lot of things, but there’s something missing from our theories, something whose nature we haven’t even guessed yet.…](https://sms4smile.com/quotes/greg-egan/we-ve-been-half-right-about-a-lot-of-things-but-there-s-something/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [A story in Asimov's is read by hundreds of thousands of people.](https://sms4smile.com/quotes/greg-egan/a-story-in-asimov-s-is-read-by-hundreds-of-thousands-of-people/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) > [“Imagine a universe entirely without structure, without shape, without connections. A cloud of microscopic events, like fragments of space-time … except that there is…](https://sms4smile.com/quotes/greg-egan/imagine-a-universe-entirely-without-structure-without-shape-without/) [Greg Egan](https://sms4smile.com/quotes/author/greg-egan/) [Explore all 78 Greg Egan quotes ](https://sms4smile.com/quotes/author/greg-egan/) ## More Beholder quotes > [Satire is a sort of glass wherein beholders do generally discover everybody’s face but their own; which is the chief reason for that kind…](https://sms4smile.com/quotes/jonathan-swift/satire-is-a-sort-of-glass-wherein-beholders-do-generally-discover/) [Jonathan Swift](https://sms4smile.com/quotes/author/jonathan-swift/) > [“All in the eye of the beholder - Some of the most destructive forces in the world (Fire & Water), can also have the…](https://sms4smile.com/quotes/martin-r-lemieux/all-in-the-eye-of-the-beholder-some-of-the-most-destructive-forces-in/) [Martin R. Lemieux](https://sms4smile.com/quotes/author/martin-r-lemieux/) > [It's true that obscenity is a matter of taste and in the eye of the beholder.](https://sms4smile.com/quotes/christopher-hitchens/it-s-true-that-obscenity-is-a-matter-of-taste-and-in-the-eye-of-the/) [Christopher Hitchens](https://sms4smile.com/quotes/author/christopher-hitchens/) > [In images,... beauty was the agency that caused visual pleasure in the beholder; and any theory of images that was not grounded in the…](https://sms4smile.com/quotes/dave-hickey/in-images-beauty-was-the-agency-that-caused-visual-pleasure-in-the/) [Dave Hickey](https://sms4smile.com/quotes/author/dave-hickey/) > [Good art is in the wallet of the beholder.](https://sms4smile.com/quotes/kathy-lette/good-art-is-in-the-wallet-of-the-beholder/) [Kathy Lette](https://sms4smile.com/quotes/author/kathy-lette/) > [Mere bashfulness without merit is awkward; and merit without modesty, insolent. But modest merit has a double claim to acceptance, and generally meets with…](https://sms4smile.com/quotes/joseph-addison/mere-bashfulness-without-merit-is-awkward-and-merit-without-modesty/) [Joseph Addison](https://sms4smile.com/quotes/author/joseph-addison/) > [The American Beauty Rose can be produced in the splendor and fragrance which bring cheer to its beholder only by sacrificing the early buds…](https://sms4smile.com/quotes/john-d-rockefeller/the-american-beauty-rose-can-be-produced-in-the-splendor-and/) [John D. Rockefeller](https://sms4smile.com/quotes/author/john-d-rockefeller/) > [I guess art is in the eye of the beholder.](https://sms4smile.com/quotes/kehinde-wiley/i-guess-art-is-in-the-eye-of-the-beholder/) [Kehinde Wiley](https://sms4smile.com/quotes/author/kehinde-wiley/) > [The beauty is in the eye of the beholder.](https://sms4smile.com/quotes/william-carlos-williams/the-beauty-is-in-the-eye-of-the-beholder/) [William Carlos Williams](https://sms4smile.com/quotes/author/william-carlos-williams/) > [The most liberating thing about beauty is realizing you are the beholder.](https://sms4smile.com/quotes/senoraroy/the-most-liberating-thing-about-beauty-is-realizing-you-are-the/) Senoraroy > [Art is what we call...the thing an artist does. It's not the medium or the oil or the price or whether it hangs on…](https://sms4smile.com/quotes/seth-godin/art-is-what-we-call-the-thing-an-artist-does-it-s-not-the-medium-or/) [Seth Godin](https://sms4smile.com/quotes/author/seth-godin/) > [“Beauty is in the eye of the beholder. So my only hope is that when I fall in love, find my one, that he…](https://sms4smile.com/quotes/jaymin-eve/beauty-is-in-the-eye-of-the-beholder-so-my-only-hope-is-that-when-i/) [Jaymin Eve](https://sms4smile.com/quotes/author/jaymin-eve/) > [They say beauty is in the eye of the beholder, but I find it's often in huge tits, too.](https://sms4smile.com/quotes/brad-wilkerson/they-say-beauty-is-in-the-eye-of-the-beholder-but-i-find-it-s-often/) [Brad Wilkerson](https://sms4smile.com/quotes/author/brad-wilkerson/) > [Beauty is often worse than wine; intoxicating both the holder and beholder.](https://sms4smile.com/quotes/john-zimmerman/beauty-is-often-worse-than-wine-intoxicating-both-the-holder-and/) [John Zimmerman](https://sms4smile.com/quotes/author/john-zimmerman/) > [The spring without a leaf to toss, bare and bright like a virgin fierce in her chastity, scornful in her purity, was laid out…](https://sms4smile.com/quotes/virginia-woolf/the-spring-without-a-leaf-to-toss-bare-and-bright-like-a-virgin/) [Virginia Woolf](https://sms4smile.com/quotes/author/virginia-woolf/) Browse all 211 Beholder quotes ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "Mathematics catalogues everything that is not self-contradictory; within that vast inventory, physics is an island of structures rich enough to contain their own beholders.", "creator": { "@type": "Person", "name": "Greg Egan" }, "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "url": "https://sms4smile.com/quotes/greg-egan/mathematics-catalogues-everything-that-is-not-self-contradictory/", "about": { "@type": "Thing", "name": "Beholder" }, "@id": "https://sms4smile.com/quotes/greg-egan/mathematics-catalogues-everything-that-is-not-self-contradictory/#quotation", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg", "contentUrl": "https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg", "url": "https://sms4smile.com/quotes/i/783/greg-egan-8766_beholder_mathematics-catalogues-everything-that-i_3103328.jpg", "width": 1080, "height": 1080, "caption": "“Mathematics catalogues everything that is not self-contradictory; within that vast inventory, physics is an…” — Greg Egan", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } }, { "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://sms4smile.com/" }, { "@type": "ListItem", "position": 2, "name": "Quotes", "item": "https://sms4smile.com/quotes/" }, { "@type": "ListItem", "position": 3, "name": "Greg Egan", "item": "https://sms4smile.com/quotes/author/greg-egan/" }, { "@type": "ListItem", "position": 4, "name": "Mathematics catalogues everything that is not...", "item": "https://sms4smile.com/quotes/greg-egan/mathematics-catalogues-everything-that-is-not-self-contradictory/" } ], "@id": "https://sms4smile.com/quotes/greg-egan/mathematics-catalogues-everything-that-is-not-self-contradictory/#breadcrumb" }, { "@type": "WebSite", "@id": "https://sms4smile.com/quotes/#website", "name": "SMS4Smile Quotes", "url": "https://sms4smile.com/quotes/", "publisher": { "@id": "https://sms4smile.com/quotes/#organization" } }, { "@type": "Organization", "@id": "https://sms4smile.com/quotes/#organization", "name": "SMS4Smile Quotes", "url": "https://sms4smile.com/quotes/", "logo": { "@type": "ImageObject", "url": "https://sms4smile.com/quotes/wp-content/themes/sq/assets/icons/icon-512.png", "width": 512, "height": 512 } } ] } ```