--- title: "Meaning & Key Takeaway of: Once you know a thing you can’t ever…" description: "\"Once you know a thing you can’t ever unknow it.\" — Carol Rifka Brunt" image: "https://sms4smile.com/quotes/i/b41/carol-rifka-brunt-3944_know_once-you-know-a-thing-you-can-t-ever-unk_2083803.png" --- # Once you know a thing you can’t ever unknow it. ![“Once you know a thing you can’t ever unknow it.” quote by Carol Rifka Brunt](https://sms4smile.com/quotes/i/b41/carol-rifka-brunt-3944_know_once-you-know-a-thing-you-can-t-ever-unk_2083803.png) [Download](https://sms4smile.com/quotes/i/b41/carol-rifka-brunt-3944_know_once-you-know-a-thing-you-can-t-ever-unk_2083803.png) [Open image](https://sms4smile.com/quotes/i/b41/carol-rifka-brunt-3944_know_once-you-know-a-thing-you-can-t-ever-unk_2083803.png) > “Once you know a thing you can’t ever unknow it.” [Carol Rifka Brunt](https://sms4smile.com/quotes/author/carol-rifka-brunt/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Knowledge is irreversible; once learned, it reshapes perception forever. **In simple terms:** You can’t unlearn what you know. Key Takeaway Use knowledge wisely. Themes learning memory change Mood thoughtful reflective Type philosophical advice When to use this quote - education - personal development - decision making Key Concepts cognitive permanence awareness Questions to Reflect On - How does new info alter your view? - Can you mitigate unwanted effects? A Different Perspective Irreversible knowledge may cause bias. ★ ★ ★ ★ ★ No ratings yet [Know](https://sms4smile.com/quotes/about/know/) [Know Thing](https://sms4smile.com/quotes/about/know-thing/) [Thing](https://sms4smile.com/quotes/about/thing/) [Thing Unknow](https://sms4smile.com/quotes/about/thing-unknow-4084101/) ## Related quotes > [Never give up on something when in fact you know that it's the only thing that could make you happy](https://sms4smile.com/quotes/mariejoie-uro/never-give-up-on-something-when-in-fact-you-know-that-it-s-the-only/) [Mariejoie Uro](https://sms4smile.com/quotes/author/mariejoie-uro/) > [“You can know a thing to death and be for all purposes completely ignorant of it. A man can know his father, or his…](https://sms4smile.com/quotes/marilynne-robinson/you-can-know-a-thing-to-death-and-be-for-all-purposes-completely/) [Marilynne Robinson](https://sms4smile.com/quotes/author/marilynne-robinson/) > [I hadn't known anything else, other than being an artist, and I needed to be a person for a while, really get to know…](https://sms4smile.com/quotes/tove-styrke/i-hadn-t-known-anything-else-other-than-being-an-artist-and-i-needed/) [Tove Styrke](https://sms4smile.com/quotes/author/tove-styrke/) > [Actors are like Swiss Army knives - we're ready to use any lever at any moment. 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There is only one thing that makes a…](https://sms4smile.com/quotes/paulo-coelho/if-a-person-is-living-out-his-personal-legend-he-knows-everything-he/) [Paulo Coelho](https://sms4smile.com/quotes/author/paulo-coelho/) > [I know one thing: that you can do a lot of things but if you don't educate people into conscious anarchism it gets frittered…](https://sms4smile.com/quotes/murray-bookchin/i-know-one-thing-that-you-can-do-a-lot-of-things-but-if-you-don-t/) [Murray Bookchin](https://sms4smile.com/quotes/author/murray-bookchin/) > [“A whole life has already been determined at a stage when we didn't know a thing”](https://sms4smile.com/quotes/milan-kundera/a-whole-life-has-already-been-determined-at-a-stage-when-we-didn-t/) [Milan Kundera](https://sms4smile.com/quotes/author/milan-kundera/) ## More by Carol Rifka Brunt > [“There was something so electric about it. So dangerous. Those little touches were everything. I lived fro them. 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It was good to see how much you could take.”](https://sms4smile.com/quotes/carol-rifka-brunt/i-thought-it-was-good-to-test-yourself-sometimes-it-was-good-to-see/) [Carol Rifka Brunt](https://sms4smile.com/quotes/author/carol-rifka-brunt/) [Explore all 113 Carol Rifka Brunt quotes ](https://sms4smile.com/quotes/author/carol-rifka-brunt/) ## More Know quotes > [I actually think acting is a form of self-hypnosis. You have to be hyper, hyper aware of what's going on around you. You have…](https://sms4smile.com/quotes/julianne-moore/i-actually-think-acting-is-a-form-of-self-hypnosis-you-have-to-be/) [Julianne Moore](https://sms4smile.com/quotes/author/julianne-moore/) > [“To know someone, to be known. 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I mean, that's my life lesson.](https://sms4smile.com/quotes/dwayne-johnson/the-one-thing-that-i-keep-learning-over-and-over-again-is-that-i-don/) [Dwayne Johnson](https://sms4smile.com/quotes/author/dwayne-johnson/) > [If we will not interfere with our thought, but will act entirely, or see how the thing stands in God, we know the particular…](https://sms4smile.com/quotes/ralph-waldo-emerson/if-we-will-not-interfere-with-our-thought-but-will-act-entirely-or/) [Ralph Waldo Emerson](https://sms4smile.com/quotes/author/ralph-waldo-emerson/) > [It's very easy to fool yourself that you're working, you know, when you're really not working very hard. I mean, I'm very lazy. 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