--- title: "Meaning & Key Takeaway of: One must verify or expel his doubts, and…" description: "\"One must verify or expel his doubts, and convert them into the certainty of Yes or NO.\" — Thomas Carlyle" image: "https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png" --- # One must verify or expel his doubts, and convert them into… ![“One must verify or expel his doubts, and convert them into the certainty of Yes or NO.” quote by Thomas Carlyle](https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png) [Download](https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png) [Open image](https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png) > “One must verify or expel his doubts, and convert them into the certainty of Yes or NO.” [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. He advises confronting doubts directly, deciding definitively between affirmation and rejection. **In simple terms:** Face doubts and decide clearly. Key Takeaway Make decisive choices. Themes decision‑making certainty self‑belief Mood thoughtful determined Type philosophical inspirational When to use this quote - personal dilemmas - career decisions Key Concepts critical thinking philosophy Questions to Reflect On - What doubts need resolution? - How can you turn doubt into certainty? A Different Perspective Indecision can persist despite analysis. ★ ★ ★ ★ ★ No ratings yet [Certainty](https://sms4smile.com/quotes/about/certainty/) [Certainty Yes](https://sms4smile.com/quotes/about/certainty-yes-1937525/) [Convert Certainty](https://sms4smile.com/quotes/about/convert-certainty-1937523/) [Doubt](https://sms4smile.com/quotes/about/doubt/) [Doubts Convert](https://sms4smile.com/quotes/about/doubts-convert-1937524/) [Expel Doubts](https://sms4smile.com/quotes/about/expel-doubts-1937522/) [Verify](https://sms4smile.com/quotes/about/verify/) ## Related quotes > [What makes you so certain?" "But I am not certain," I told him. "Nothing is certain. You want certainty?" "Yes!" "Then you want death.](https://sms4smile.com/quotes/stephen-r-lawhead/what-makes-you-so-certain-but-i-am-not-certain-i-told-him-nothing-is/) [Stephen R. Lawhead](https://sms4smile.com/quotes/author/stephen-r-lawhead/) > [It is a pleasant surprise to him (the pure mathematician) and an added problem if he finds that the arts can use his calculations,…](https://sms4smile.com/quotes/george-santayana/it-is-a-pleasant-surprise-to-him-the-pure-mathematician-and-an-added/) [George Santayana](https://sms4smile.com/quotes/author/george-santayana/) > [The references you do not verify are the good ones.](https://sms4smile.com/quotes/charles-peguy/the-references-you-do-not-verify-are-the-good-ones/) [Charles Peguy](https://sms4smile.com/quotes/author/charles-peguy/) > [In 5 billion years, the expansion of the universe will have progressed to the point where all other galaxies will have receded beyond detection.…](https://sms4smile.com/quotes/lawrence-m-krauss/in-5-billion-years-the-expansion-of-the-universe-will-have-progressed/) [Lawrence M. Krauss](https://sms4smile.com/quotes/author/lawrence-m-krauss/) > [The problem with quotes on the internet is it is hard to verify their authenticity](https://sms4smile.com/quotes/abraham-lincoln/the-problem-with-quotes-on-the-internet-is-it-is-hard-to-verify-their/) [Abraham Lincoln](https://sms4smile.com/quotes/author/abraham-lincoln/) > [I find it hard to argue with Reagan's old slogan: Trust, but verify.](https://sms4smile.com/quotes/david-hoffman/i-find-it-hard-to-argue-with-reagan-s-old-slogan-trust-but-verify/) [David Hoffman](https://sms4smile.com/quotes/author/david-hoffman/) > [The security world needs to take a more proactive approach. A lot of companies will know an exploit exists and they'll release the software…](https://sms4smile.com/quotes/michael-demon-calce/the-security-world-needs-to-take-a-more-proactive-approach-a-lot-of/) [Michael Demon Calce](https://sms4smile.com/quotes/author/michael-demon-calce/) > [“There are no such words like "over-dreaming" or dreaming without "biometric verification". You can dream over and over again! You don't need a certificate…](https://sms4smile.com/quotes/israelmore-ayivor/there-are-no-such-words-like-over-dreaming-or-dreaming-without/) [Israelmore Ayivor](https://sms4smile.com/quotes/author/israelmore-ayivor/) > [Search for the truth. I tell you things and I always ask you to verify what I say. I told you yesterday that there…](https://sms4smile.com/quotes/mohammed-saeed-al-sahaf/search-for-the-truth-i-tell-you-things-and-i-always-ask-you-to-verify/) [Mohammed Saeed al-Sahaf](https://sms4smile.com/quotes/author/mohammed-saeed-al-sahaf/) > [Just as it is the province of science to find out what the facts of life are, to classify them and use them to…](https://sms4smile.com/quotes/lily-dougall/just-as-it-is-the-province-of-science-to-find-out-what-the-facts-of/) [Lily Dougall](https://sms4smile.com/quotes/author/lily-dougall/) > [I have appealed to our own experience for the truth of what I advance on this subject \[that the legislative power is the predominant…](https://sms4smile.com/quotes/james-madison/i-have-appealed-to-our-own-experience-for-the-truth-of-what-i-advance/) [James Madison](https://sms4smile.com/quotes/author/james-madison/) > [Anything that is western origin, first you verify it, then accept it. Anything that is Indian origin, first accept it, then verify it if…](https://sms4smile.com/quotes/swami-vivekananda/anything-that-is-western-origin-first-you-verify-it-then-accept-it/) [Swami Vivekananda](https://sms4smile.com/quotes/author/swami-vivekananda/) > [It's all about who gets to work and making sure they're legally present in our country. And to do that nationally E-verify becomes a…](https://sms4smile.com/quotes/janet-napolitano/it-s-all-about-who-gets-to-work-and-making-sure-they-re-legally/) [Janet Napolitano](https://sms4smile.com/quotes/author/janet-napolitano/) > [Aristotle maintained that women have fewer teeth than men; although he was twice married, it never occurred to him to verify this statement by…](https://sms4smile.com/quotes/bertrand-russell/aristotle-maintained-that-women-have-fewer-teeth-than-men-although-he/) [Bertrand Russell](https://sms4smile.com/quotes/author/bertrand-russell/) > [The first thing you ought to do is verify what I present. Just because I say it doesn't make it true. So check it…](https://sms4smile.com/quotes/noam-chomsky/the-first-thing-you-ought-to-do-is-verify-what-i-present-just-because/) [Noam Chomsky](https://sms4smile.com/quotes/author/noam-chomsky/) ## More by Thomas Carlyle > [O thou that pinest in the imprisonment of the Actual, and criest bitterly to the gods for a kingdom wherein to rule and create,…](https://sms4smile.com/quotes/thomas-carlyle/o-thou-that-pinest-in-the-imprisonment-of-the-actual-and-criest/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Whose school-hours are all the days and nights of our existence.](https://sms4smile.com/quotes/thomas-carlyle/whose-school-hours-are-all-the-days-and-nights-of-our-existence/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [No sadder proof can be given by a man of his own littleness than disbelief in great men.](https://sms4smile.com/quotes/thomas-carlyle/no-sadder-proof-can-be-given-by-a-man-of-his-own-littleness-than/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Fame, we may understand, is no sure test of merit, but only a probability of such: it is an accident, not a property, of…](https://sms4smile.com/quotes/thomas-carlyle/fame-we-may-understand-is-no-sure-test-of-merit-but-only-a/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [The sincere alone can recognize sincerity.](https://sms4smile.com/quotes/thomas-carlyle/the-sincere-alone-can-recognize-sincerity/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Be a pattern to others, and then all will go well; for as a whole city is affected by the licentious passions and vices…](https://sms4smile.com/quotes/thomas-carlyle/be-a-pattern-to-others-and-then-all-will-go-well-for-as-a-whole-city/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [The glory of a workman, still more of a master workman, that he does his work well, ought to be his most precious possession;…](https://sms4smile.com/quotes/thomas-carlyle/the-glory-of-a-workman-still-more-of-a-master-workman-that-he-does/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [All human things do require to have an ideal in them; to have some soul in them.](https://sms4smile.com/quotes/thomas-carlyle/all-human-things-do-require-to-have-an-ideal-in-them-to-have-some/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Insurrection, never so necessary, is a most sad necessity; and governors who wait for that to instruct them are surely getting into the fatalest…](https://sms4smile.com/quotes/thomas-carlyle/insurrection-never-so-necessary-is-a-most-sad-necessity-and-governors/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [What is philosophy but a continual battle against custom?](https://sms4smile.com/quotes/thomas-carlyle/what-is-philosophy-but-a-continual-battle-against-custom/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Let Time and Chance combine, combine! Let Time and Chance combine! The fairest love from heaven above, That love of yours was mine, My…](https://sms4smile.com/quotes/thomas-carlyle/let-time-and-chance-combine-combine-let-time-and-chance-combine-the/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Thought will not work except in silence.](https://sms4smile.com/quotes/thomas-carlyle/thought-will-not-work-except-in-silence/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [The public is anold woman.Let her maunderand mumble.](https://sms4smile.com/quotes/thomas-carlyle/the-public-is-anold-woman-let-her-maunderand-mumble/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [Does not every true man feel that he is himself made higher by doing reverence to what is really above him?](https://sms4smile.com/quotes/thomas-carlyle/does-not-every-true-man-feel-that-he-is-himself-made-higher-by-doing/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) > [The press is the fourth estate of the realm.](https://sms4smile.com/quotes/thomas-carlyle/the-press-is-the-fourth-estate-of-the-realm/) [Thomas Carlyle](https://sms4smile.com/quotes/author/thomas-carlyle/) [Explore all 917 Thomas Carlyle quotes ](https://sms4smile.com/quotes/author/thomas-carlyle/) ## More Certainty quotes > [A common fallacy in much of the adverse criticism to which science is subjected today is that it claims certainty, infallibility and complete emotional…](https://sms4smile.com/quotes/cyril-norman-hinshelwood/a-common-fallacy-in-much-of-the-adverse-criticism-to-which-science-is/) [Cyril Norman Hinshelwood](https://sms4smile.com/quotes/author/cyril-norman-hinshelwood/) > [Sometimes we have the absolute certainty there's something inside us that's so hideous and monstrous that if we ever search it out we won't…](https://sms4smile.com/quotes/hubert-selby-jr/sometimes-we-have-the-absolute-certainty-there-s-something-inside-us/) [Hubert Selby, Jr](https://sms4smile.com/quotes/author/hubert-selby-jr/) > [The past and the future become unimportant. There is only that moment, and the incredible certainty that everything under the sun has been written…](https://sms4smile.com/quotes/paulo-coelho/the-past-and-the-future-become-unimportant-there-is-only-that-moment/) [Paulo Coelho](https://sms4smile.com/quotes/author/paulo-coelho/) > [In the mental disturbance and effort of writing, what sustains you is the certainty that on every page there is something left unsaid.](https://sms4smile.com/quotes/cesare-pavese/in-the-mental-disturbance-and-effort-of-writing-what-sustains-you-is/) [Cesare Pavese](https://sms4smile.com/quotes/author/cesare-pavese/) > [Of course I doubt. I do not practice a certainty. I practice a faith.](https://sms4smile.com/quotes/robert-breault/of-course-i-doubt-i-do-not-practice-a-certainty-i-practice-a-faith/) [Robert Breault](https://sms4smile.com/quotes/author/robert-breault/) > [The world is a wonderfully weird place, consensual reality is significantly flawed, no institution can be trusted, certainty is a mirage, security a delusion,…](https://sms4smile.com/quotes/tom-robbins/the-world-is-a-wonderfully-weird-place-consensual-reality-is/) [Tom Robbins](https://sms4smile.com/quotes/author/tom-robbins/) > [As a businessman, I know that businesses need certainty.](https://sms4smile.com/quotes/bill-foster/as-a-businessman-i-know-that-businesses-need-certainty/) [Bill Foster](https://sms4smile.com/quotes/author/bill-foster/) > [It is suggested that in domestic violence at least the presence or absence of a firearm, or of any other type of weapon, is…](https://sms4smile.com/quotes/colin-greenwood/it-is-suggested-that-in-domestic-violence-at-least-the-presence-or/) [Colin Greenwood](https://sms4smile.com/quotes/author/colin-greenwood/) > [Every single person who is a member of our party deserves to have certainty. They deserve to know that my attention and focus is…](https://sms4smile.com/quotes/annamie-paul/every-single-person-who-is-a-member-of-our-party-deserves-to-have/) [Annamie Paul](https://sms4smile.com/quotes/author/annamie-paul/) > [The significance and volume of repairs that are needed across the country demand that we give state and local governments the long-term certainty they…](https://sms4smile.com/quotes/sam-graves/the-significance-and-volume-of-repairs-that-are-needed-across-the/) [Sam Graves](https://sms4smile.com/quotes/author/sam-graves/) > [“Death is the one great certainty in life. That’s what my dad used to say. Nothing else is certain. Not love. Not happiness. Not…](https://sms4smile.com/quotes/mila-gray/death-is-the-one-great-certainty-in-life-that-s-what-my-dad-used-to/) [Mila Gray](https://sms4smile.com/quotes/author/mila-gray/) > [ \[I\]f in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge… ](https://sms4smile.com/quotes/roger-bacon/i-f-in-other-sciences-we-should-arrive-at-certainty-without-doubt-and/) [Roger Bacon](https://sms4smile.com/quotes/author/roger-bacon/) > [Do not lose hope; St. Joseph also experienced moments of difficulty, but he never lost faith and was able to overcome them, in the…](https://sms4smile.com/quotes/pope-francis/do-not-lose-hope-st-joseph-also-experienced-moments-of-difficulty-but/) [Pope Francis](https://sms4smile.com/quotes/author/pope-francis/) > [As the future is never known with certainty, the evaluation of the prospective benefits requires the formation of expectations. An acceptable house, partner or…](https://sms4smile.com/quotes/dale-t-mortensen/as-the-future-is-never-known-with-certainty-the-evaluation-of-the/) [Dale T. Mortensen](https://sms4smile.com/quotes/author/dale-t-mortensen/) > [Finding someone that trusted my vision helped me find certainty in who I was.](https://sms4smile.com/quotes/syd/finding-someone-that-trusted-my-vision-helped-me-find-certainty-in/) [Syd](https://sms4smile.com/quotes/author/syd/) [Browse all 1,776 Certainty quotes ](https://sms4smile.com/quotes/about/certainty/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "One must verify or expel his doubts, and convert them into the certainty of Yes or NO.", "creator": { "@type": "Person", "name": "Thomas Carlyle" }, "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "url": "https://sms4smile.com/quotes/thomas-carlyle/one-must-verify-or-expel-his-doubts-and-convert-them-into-the/", "about": { "@type": "Thing", "name": "Certainty" }, "@id": "https://sms4smile.com/quotes/thomas-carlyle/one-must-verify-or-expel-his-doubts-and-convert-them-into-the/#quotation", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png", "contentUrl": "https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png", "url": "https://sms4smile.com/quotes/i/384/thomas-carlyle-207_certainty_one-must-verify-or-expel-his-doubts-and_979869.png", "width": 1080, "height": 1080, "caption": "“One must verify or expel his doubts, and convert them into the certainty of Yes or NO.” — Thomas Carlyle", "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": "Thomas Carlyle", "item": "https://sms4smile.com/quotes/author/thomas-carlyle/" }, { "@type": "ListItem", "position": 4, "name": "One must verify or expel his...", "item": "https://sms4smile.com/quotes/thomas-carlyle/one-must-verify-or-expel-his-doubts-and-convert-them-into-the/" } ], "@id": "https://sms4smile.com/quotes/thomas-carlyle/one-must-verify-or-expel-his-doubts-and-convert-them-into-the/#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 } } ] } ```