--- title: "Meaning & Key Takeaway of: In science, nothing is ever 100% proven." description: "\"In science, nothing is ever 100% proven.\" — Michio Kaku" image: "https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png" --- # In science, nothing is ever 100% proven. ![“In science, nothing is ever 100% proven.” quote by Michio Kaku](https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png) [Download](https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png) [Open image](https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png) > “In science, nothing is ever 100% proven.” [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Scientific claims are always provisional; absolute certainty is unattainable. **In simple terms:** Science never fully proven. Key Takeaway Accept uncertainty. Themes science philosophy uncertainty Mood analytical inquisitive Type scientific educational When to use this quote - research - policy making - technology development Key Concepts Falsifiability empiricism Questions to Reflect On - How does provisional knowledge affect policy? - What role does doubt play in scientific progress? A Different Perspective Some may misuse uncertainty to deny facts. ★ ★ ★ ★ ★ No ratings yet [100 Proven](https://sms4smile.com/quotes/about/100-proven-995943/) [Ever](https://sms4smile.com/quotes/about/ever/) [Nothing](https://sms4smile.com/quotes/about/nothing/) [Proven](https://sms4smile.com/quotes/about/proven/) [Science](https://sms4smile.com/quotes/about/science/) [Science 100](https://sms4smile.com/quotes/about/science-100-995942/) ## Related quotes > [I have nothing against investment banking, but it's like massaging money rather than creating money.](https://sms4smile.com/quotes/michio-kaku/i-have-nothing-against-investment-banking-but-it-s-like-massaging/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [I don't think anything's ever simple. Everyone's just trying to understand each other, and whether that's because you're in a relationship or because you're…](https://sms4smile.com/quotes/imogen-poots/i-don-t-think-anything-s-ever-simple-everyone-s-just-trying-to/) [Imogen Poots](https://sms4smile.com/quotes/author/imogen-poots/) > [Here is something no real celebrity will ever tell you: film acting is not very fun. Doing the same thing over and over again…](https://sms4smile.com/quotes/mara-wilson/here-is-something-no-real-celebrity-will-ever-tell-you-film-acting-is/) [Mara Wilson](https://sms4smile.com/quotes/author/mara-wilson/) > [Nothing's ever too fast. Maybe sometimes on the road some people are too fast if they don't know how to control the car, but…](https://sms4smile.com/quotes/heikki-kovalainen/nothing-s-ever-too-fast-maybe-sometimes-on-the-road-some-people-are/) [Heikki Kovalainen](https://sms4smile.com/quotes/author/heikki-kovalainen/) > [Nothing is ever like home.](https://sms4smile.com/quotes/danilo-gallinari/nothing-is-ever-like-home/) [Danilo Gallinari](https://sms4smile.com/quotes/author/danilo-gallinari/) > [There's nothing I'm doing these days that I ever thought I was gonna do.](https://sms4smile.com/quotes/meg-white/there-s-nothing-i-m-doing-these-days-that-i-ever-thought-i-was-gonna/) [Meg White](https://sms4smile.com/quotes/author/meg-white/) > [To me, nothing ever feels like a sure thing. I cling to that because it's very important you don't ever think anything is a…](https://sms4smile.com/quotes/john-hurt/to-me-nothing-ever-feels-like-a-sure-thing-i-cling-to-that-because-it/) [John Hurt](https://sms4smile.com/quotes/author/john-hurt/) > [Close contact between science and the practice of collective farms and State farms creates inexhaustible opportunities for the development of theoretical knowledge, enabling us…](https://sms4smile.com/quotes/trofim-lysenko/close-contact-between-science-and-the-practice-of-collective-farms/) [Trofim Lysenko](https://sms4smile.com/quotes/author/trofim-lysenko/) > [There's nothing I believe in more strongly than getting young people interested in science and engineering, for a better tomorrow, for all humankind.](https://sms4smile.com/quotes/bill-nye/there-s-nothing-i-believe-in-more-strongly-than-getting-young-people/) [Bill Nye](https://sms4smile.com/quotes/author/bill-nye/) > [The main thing that endears the United Nations to member governments, and so enables it to survive, is its proven capacity to fail, and…](https://sms4smile.com/quotes/conor-cruise-o-brien/the-main-thing-that-endears-the-united-nations-to-member-governments/) [Conor Cruise O'Brien](https://sms4smile.com/quotes/author/conor-cruise-o-brien/) > [I am not particularly religious. But I think we do face the question of where God is, why we are created and where does…](https://sms4smile.com/quotes/ang-lee/i-am-not-particularly-religious-but-i-think-we-do-face-the-question/) [Ang Lee](https://sms4smile.com/quotes/author/ang-lee/) > [Now, you might say – “But why should we pay people for doing what they’re supposed to do?” It’s a fair question – but…](https://sms4smile.com/quotes/michael-bloomberg/now-you-might-say-but-why-should-we-pay-people-for-doing-what-they-re/) [Michael Bloomberg](https://sms4smile.com/quotes/author/michael-bloomberg/) > [True love is proven through the actions of your true love!! Not through the act of saying it!](https://sms4smile.com/quotes/anonymous/true-love-is-proven-through-the-actions-of-your-true-love-not-through/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [Our faith is really proven in the way we talk to ourselves. The loudest human voice you will listen to is your own. Choose…](https://sms4smile.com/quotes/christine-caine/our-faith-is-really-proven-in-the-way-we-talk-to-ourselves-the/) [Christine Caine](https://sms4smile.com/quotes/author/christine-caine/) > [I don't feel like I have to live up to anything because I've proven that I can play. Give me the ball and let's…](https://sms4smile.com/quotes/clinton-portis/i-don-t-feel-like-i-have-to-live-up-to-anything-because-i-ve-proven/) [Clinton Portis](https://sms4smile.com/quotes/author/clinton-portis/) ## More by Michio Kaku > [“My fundamental premise about the brain is that its workings—what we sometimes call “mind”—are a consequence of its anatomy and physiology, and nothing more.…](https://sms4smile.com/quotes/michio-kaku/my-fundamental-premise-about-the-brain-is-that-its-workings-what-we/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [I have nothing against investment banking, but it's like massaging money rather than creating money.](https://sms4smile.com/quotes/michio-kaku/i-have-nothing-against-investment-banking-but-it-s-like-massaging/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [I am a figure skater, which helps me appreciate Newton's theory of mechanics.](https://sms4smile.com/quotes/michio-kaku/i-am-a-figure-skater-which-helps-me-appreciate-newton-s-theory-of/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [If space is a fabric, then of course fabrics can have ripples, which we have now seen directly. But fabrics can also rip. Then…](https://sms4smile.com/quotes/michio-kaku/if-space-is-a-fabric-then-of-course-fabrics-can-have-ripples-which-we/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [The best theory comes from string theory, which states that dark matter is nothing but a higher vibration of the string. We are, in…](https://sms4smile.com/quotes/michio-kaku/the-best-theory-comes-from-string-theory-which-states-that-dark/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [The media, of course, loves to make claims about the fountain of youth. Don't believe it. No one has it. But we're getting close.](https://sms4smile.com/quotes/michio-kaku/the-media-of-course-loves-to-make-claims-about-the-fountain-of-youth/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [Consciousness-one level is understanding where we are in space. Consciousness two is where we understand our position in society: who's top dog, who's underdog…](https://sms4smile.com/quotes/michio-kaku/consciousness-one-level-is-understanding-where-we-are-in-space/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [It would take a civilization far more advanced than ours, unbelievably advanced, to begin to manipulate negative energy to create gateways to the past.…](https://sms4smile.com/quotes/michio-kaku/it-would-take-a-civilization-far-more-advanced-than-ours-unbelievably/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [A human body can think thoughts, play a piano, kill germs, remove toxins, make a baby all at once. Once it's doing that your…](https://sms4smile.com/quotes/michio-kaku/a-human-body-can-think-thoughts-play-a-piano-kill-germs-remove-toxins/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [“I’m as fond of my body as anyone, but if I can be 200 with a body of silicon, I’ll take it. —DANIEL HILL,…](https://sms4smile.com/quotes/michio-kaku/i-m-as-fond-of-my-body-as-anyone-but-if-i-can-be-200-with-a-body-of/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [Science is about principles. It's about concepts. It's not about memorizing the parts of a flower. It helps to know some of these things,…](https://sms4smile.com/quotes/michio-kaku/science-is-about-principles-it-s-about-concepts-it-s-not-about/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [A related aspect of intelligent consciousness is delay of gratification: the wisdom to accurately predict whether delay rather than acting on impulse will yield…](https://sms4smile.com/quotes/michio-kaku/a-related-aspect-of-intelligent-consciousness-is-delay-of/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [“There are an estimated 100 billion neurons residing inside the skull with an exponential amount of neural connections”](https://sms4smile.com/quotes/michio-kaku/there-are-an-estimated-100-billion-neurons-residing-inside-the-skull/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [“But on the question of whether the robots will eventually take over, he { Rodney A. Brooks } says that this will probably not…](https://sms4smile.com/quotes/michio-kaku/but-on-the-question-of-whether-the-robots-will-eventually-take-over/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) > [The idea that excites me the most concerns the two greatest puzzles in science: the origin of the universe, and the origin of consciousness.…](https://sms4smile.com/quotes/michio-kaku/the-idea-that-excites-me-the-most-concerns-the-two-greatest-puzzles/) [Michio Kaku](https://sms4smile.com/quotes/author/michio-kaku/) [Explore all 328 Michio Kaku quotes ](https://sms4smile.com/quotes/author/michio-kaku/) ## More Ever quotes > [When I was trying to come up with a stage name, I thought 'Lord' was super rad, but really masculine - ever since I…](https://sms4smile.com/quotes/lorde/when-i-was-trying-to-come-up-with-a-stage-name-i-thought-lord-was/) [Lorde](https://sms4smile.com/quotes/author/lorde/) > [I once told someone I could act. They totally bought it. I've been getting away with it ever since.](https://sms4smile.com/quotes/akshay-kumar/i-once-told-someone-i-could-act-they-totally-bought-it-i-ve-been/) [Akshay Kumar](https://sms4smile.com/quotes/author/akshay-kumar/) > [I am tired of our characters being so incomplete. When do we ever save the day in a film? When does a Latino actor…](https://sms4smile.com/quotes/esai-morales/i-am-tired-of-our-characters-being-so-incomplete-when-do-we-ever-save/) [Esai Morales](https://sms4smile.com/quotes/author/esai-morales/) > [I want to make myself and the crowd happy by way of something different, and that makes things difficult. I'm never playing something that…](https://sms4smile.com/quotes/tiesto/i-want-to-make-myself-and-the-crowd-happy-by-way-of-something/) [Tiesto](https://sms4smile.com/quotes/author/tiesto/) > [Thatcher was the best politician I have ever witnessed.](https://sms4smile.com/quotes/kenneth-clarke/thatcher-was-the-best-politician-i-have-ever-witnessed/) [Kenneth Clarke](https://sms4smile.com/quotes/author/kenneth-clarke/) > [The resources of our continent attract, more than ever, the interests of rich countries.](https://sms4smile.com/quotes/omar-bongo/the-resources-of-our-continent-attract-more-than-ever-the-interests/) [Omar Bongo](https://sms4smile.com/quotes/author/omar-bongo/) > [I say this about everything: when I was on 'Neighbours,' I said, 'These are the best years of my life!' When I was filming…](https://sms4smile.com/quotes/margot-robbie/i-say-this-about-everything-when-i-was-on-neighbours-i-said-these-are/) [Margot Robbie](https://sms4smile.com/quotes/author/margot-robbie/) > [I don't think you should ever say, 'This is the last time'. Music isn't like that. You'll be sitting there not wishing to get…](https://sms4smile.com/quotes/roger-daltrey/i-don-t-think-you-should-ever-say-this-is-the-last-time-music-isn-t/) [Roger Daltrey](https://sms4smile.com/quotes/author/roger-daltrey/) > [Ninety-eight percent of the things that come out of my mouth are intended to be harmless or even charming. They're not ever intended to…](https://sms4smile.com/quotes/megan-fox/ninety-eight-percent-of-the-things-that-come-out-of-my-mouth-are/) [Megan Fox](https://sms4smile.com/quotes/author/megan-fox/) > [My mother worked in the white world, but I lived almost exclusively in a black world. I don't think I had ever seen a…](https://sms4smile.com/quotes/edward-p-jones/my-mother-worked-in-the-white-world-but-i-lived-almost-exclusively-in/) [Edward P. Jones](https://sms4smile.com/quotes/author/edward-p-jones/) > [I grew up in a blue-collar neighborhood and was raised by a man who did not emote, ever... I always cry at movies, and…](https://sms4smile.com/quotes/matthew-quick/i-grew-up-in-a-blue-collar-neighborhood-and-was-raised-by-a-man-who/) [Matthew Quick](https://sms4smile.com/quotes/author/matthew-quick/) > [Close contact between science and the practice of collective farms and State farms creates inexhaustible opportunities for the development of theoretical knowledge, enabling us…](https://sms4smile.com/quotes/trofim-lysenko/close-contact-between-science-and-the-practice-of-collective-farms/) [Trofim Lysenko](https://sms4smile.com/quotes/author/trofim-lysenko/) > [If I ever had twins, I'd use one for parts.](https://sms4smile.com/quotes/steven-wright/if-i-ever-had-twins-i-d-use-one-for-parts/) [Steven Wright](https://sms4smile.com/quotes/author/steven-wright/) > [I loved 'Funny Lady' for whatever reason. People say they didn't know I could sing and dance. Well, nobody ever asks me - it's…](https://sms4smile.com/quotes/james-caan/i-loved-funny-lady-for-whatever-reason-people-say-they-didn-t-know-i/) [James Caan](https://sms4smile.com/quotes/author/james-caan/) > [Learning to speak was the most remarkable thing you ever did.](https://sms4smile.com/quotes/jeffrey-kluger/learning-to-speak-was-the-most-remarkable-thing-you-ever-did/) [Jeffrey Kluger](https://sms4smile.com/quotes/author/jeffrey-kluger/) [Browse all 4,296 Ever quotes ](https://sms4smile.com/quotes/about/ever/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "In science, nothing is ever 100% proven.", "creator": { "@type": "Person", "name": "Michio Kaku" }, "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "url": "https://sms4smile.com/quotes/michio-kaku/in-science-nothing-is-ever-100-proven/", "about": { "@type": "Thing", "name": "Ever" }, "@id": "https://sms4smile.com/quotes/michio-kaku/in-science-nothing-is-ever-100-proven/#quotation", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png", "contentUrl": "https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png", "url": "https://sms4smile.com/quotes/i/65e/michio-kaku-907_ever_in-science-nothing-is-ever-100-proven-87_875345.png", "width": 1080, "height": 1080, "caption": "“In science, nothing is ever 100% proven.” — Michio Kaku", "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": "Michio Kaku", "item": "https://sms4smile.com/quotes/author/michio-kaku/" }, { "@type": "ListItem", "position": 4, "name": "In science, nothing is ever 100%...", "item": "https://sms4smile.com/quotes/michio-kaku/in-science-nothing-is-ever-100-proven/" } ], "@id": "https://sms4smile.com/quotes/michio-kaku/in-science-nothing-is-ever-100-proven/#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 } } ] } ```