--- title: "Meaning & Key Takeaway of: Assumption is a dangerous conclusion." description: "\"Assumption is a dangerous conclusion.\" — Terry Mark" image: "https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg" --- # Assumption is a dangerous conclusion. ![“Assumption is a dangerous conclusion.” quote by Terry Mark](https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg) [Download](https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg) [Open image](https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg) > “Assumption is a dangerous conclusion.” [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Assuming without evidence leads to faulty conclusions and risky decisions. **In simple terms:** Assumptions can be harmful. Key Takeaway Question assumptions before acting. Themes critical thinking risk decision making Mood cautious analytical Type advisory reflective When to use this quote - business strategy - personal relationships - scientific research Key Concepts logic cognitive bias Questions to Reflect On - What evidence would change your view? - How can you test this assumption? A Different Perspective Assumptions may be necessary when data is unavailable. ★ ★ ★ ★ ★ No ratings yet [Assumption](https://sms4smile.com/quotes/about/assumption/) [Assumption Dangerous](https://sms4smile.com/quotes/about/assumption-dangerous-305592/) [Conclusion](https://sms4smile.com/quotes/about/conclusion/) [Dangerous](https://sms4smile.com/quotes/about/dangerous/) [Dangerous Conclusion](https://sms4smile.com/quotes/about/dangerous-conclusion-305593/) ## Related quotes > [As a physician I have sympathy for patients suffering from pain and other medical conditions. Although I understand many believe marijuana is the most…](https://sms4smile.com/quotes/bill-frist/as-a-physician-i-have-sympathy-for-patients-suffering-from-pain-and/) [Bill Frist](https://sms4smile.com/quotes/author/bill-frist/) > [According to the Western model, pregnancy is a disease, menopause is a disease, and even getting pregnant is a disease. 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Humans assume that alien life forms should conform to standards that match our…](https://sms4smile.com/quotes/steve-perry/humans-suffer-from-self-centred-notions-as-to-the-nature-of-life/) [Steve Perry](https://sms4smile.com/quotes/author/steve-perry/) > [Leadership, pure and simple, is the assumption of responsibility for the pursuit of excellence in group life.](https://sms4smile.com/quotes/philip-selznick/leadership-pure-and-simple-is-the-assumption-of-responsibility-for/) [Philip Selznick](https://sms4smile.com/quotes/author/philip-selznick/) > [If he's - the inference is that somehow he thinks slavery is a - is a noble institution I would - I would strongly…](https://sms4smile.com/quotes/george-w-bush/if-he-s-the-inference-is-that-somehow-he-thinks-slavery-is-a-is-a/) [George W. Bush](https://sms4smile.com/quotes/author/george-w-bush/) > [If they are, then the only ultimate truths are the particulars of concrete experience, and no postulate or general assumption is inherent in science…](https://sms4smile.com/quotes/chauncey-wright/if-they-are-then-the-only-ultimate-truths-are-the-particulars-of/) [Chauncey Wright](https://sms4smile.com/quotes/author/chauncey-wright/) > [She spent hours drawing on her own, trying to perfect her craft. And when she got into music, she had that same diligence in…](https://sms4smile.com/quotes/laura-joplin/she-spent-hours-drawing-on-her-own-trying-to-perfect-her-craft-and/) [Laura Joplin](https://sms4smile.com/quotes/author/laura-joplin/) > [The possibility of saying anything about a thing rests on the assumption that it preserves its identity, or continues to be the same thing…](https://sms4smile.com/quotes/frank-knight/the-possibility-of-saying-anything-about-a-thing-rests-on-the/) [Frank Knight](https://sms4smile.com/quotes/author/frank-knight/) > [Fortunately, the mind is restless; when it uncovers a layer of its own deception, gives up an illusion, exposes a lie, it does not…](https://sms4smile.com/quotes/kim-chernin/fortunately-the-mind-is-restless-when-it-uncovers-a-layer-of-its-own/) [Kim Chernin](https://sms4smile.com/quotes/author/kim-chernin/) > [The risk of developing carcinoma of the lung increases steadily as the amount smoked increases. If the risk among non-smokers is taken as unity…](https://sms4smile.com/quotes/richard-doll/the-risk-of-developing-carcinoma-of-the-lung-increases-steadily-as/) [Richard Doll](https://sms4smile.com/quotes/author/richard-doll/) > [Neither novels or their readers benefit from any attempts to divine whether any facts hide inside a story. Such efforts attack the very idea…](https://sms4smile.com/quotes/john-green/neither-novels-or-their-readers-benefit-from-any-attempts-to-divine/) [John Green](https://sms4smile.com/quotes/author/john-green/) > [Much like teaching art to young art students age 10 to 15 or so on, you have to break it down into bite-sized pieces,…](https://sms4smile.com/quotes/kehinde-wiley/much-like-teaching-art-to-young-art-students-age-10-to-15-or-so-on/) [Kehinde Wiley](https://sms4smile.com/quotes/author/kehinde-wiley/) > [It's difficult for people to come to the understanding that only a small minority of the people ever really get the word about life,…](https://sms4smile.com/quotes/earl-nightingale/it-s-difficult-for-people-to-come-to-the-understanding-that-only-a/) [Earl Nightingale](https://sms4smile.com/quotes/author/earl-nightingale/) > [Next to the assumption of power was the responsibility of relinquishing it.](https://sms4smile.com/quotes/benjamin-disraeli/next-to-the-assumption-of-power-was-the-responsibility-of/) [Benjamin Disraeli](https://sms4smile.com/quotes/author/benjamin-disraeli/) ## More by Terry Mark > [Hate nothing in another human being because your eyes is made looking at others but never at your own self except in front of…](https://sms4smile.com/quotes/terry-mark/hate-nothing-in-another-human-being-because-your-eyes-is-made-looking/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Sometimes, the person you trust most is the one who trusts you the least.](https://sms4smile.com/quotes/terry-mark/sometimes-the-person-you-trust-most-is-the-one-who-trusts-you-the/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Fill your minds with thoughts that will make you smile each time you remember them.](https://sms4smile.com/quotes/terry-mark/fill-your-minds-with-thoughts-that-will-make-you-smile-each-time-you/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Sometimes you never notice when somebody is breaking your heart, until they are through.](https://sms4smile.com/quotes/terry-mark/sometimes-you-never-notice-when-somebody-is-breaking-your-heart-until/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [If possible, I want to hear POLITICS defined without either sympathy or apathy.](https://sms4smile.com/quotes/terry-mark/if-possible-i-want-to-hear-politics-defined-without-either-sympathy/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Sometimes the best thing to do when someone is spitting harsh words on us is to simply fold our hands and watch. Not because…](https://sms4smile.com/quotes/terry-mark/sometimes-the-best-thing-to-do-when-someone-is-spitting-harsh-words/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [If you have a bad day,pray. If you have a good day,pray. Pray for the best. Pray with the best. Prayer is the best.](https://sms4smile.com/quotes/terry-mark/if-you-have-a-bad-day-pray-if-you-have-a-good-day-pray-pray-for-the/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Procrastination isn't patience. It's a sign of laziness.](https://sms4smile.com/quotes/terry-mark/procrastination-isn-t-patience-it-s-a-sign-of-laziness/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Don't shout at my face, I won't understand you. Speak to my heart, I will feel it.](https://sms4smile.com/quotes/terry-mark/don-t-shout-at-my-face-i-won-t-understand-you-speak-to-my-heart-i/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [My Life ain't steady but I always try to steady myself.](https://sms4smile.com/quotes/terry-mark/my-life-ain-t-steady-but-i-always-try-to-steady-myself/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Whoever knows and fears God has conscience.](https://sms4smile.com/quotes/terry-mark/whoever-knows-and-fears-god-has-conscience/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [The Good Hearts always easily get broken.](https://sms4smile.com/quotes/terry-mark/the-good-hearts-always-easily-get-broken/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [My troubles taught me not to be lazy if I really want to win.](https://sms4smile.com/quotes/terry-mark/my-troubles-taught-me-not-to-be-lazy-if-i-really-want-to-win/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [Don't try to prove yourself the extra mile, your daily Life is enough to do that for you.](https://sms4smile.com/quotes/terry-mark/don-t-try-to-prove-yourself-the-extra-mile-your-daily-life-is-enough/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) > [No matter how we repeat a lie, no matter how we deceive a people, the lies at the end can never be the truth.](https://sms4smile.com/quotes/terry-mark/no-matter-how-we-repeat-a-lie-no-matter-how-we-deceive-a-people-the/) [Terry Mark](https://sms4smile.com/quotes/author/terry-mark/) [Explore all 1,469 Terry Mark quotes ](https://sms4smile.com/quotes/author/terry-mark/) ## More Assumption quotes > [Next to the assumption of power was the responsibility of relinquishing it.](https://sms4smile.com/quotes/benjamin-disraeli/next-to-the-assumption-of-power-was-the-responsibility-of/) [Benjamin Disraeli](https://sms4smile.com/quotes/author/benjamin-disraeli/) > [It's difficult for people to come to the understanding that only a small minority of the people ever really get the word about life,…](https://sms4smile.com/quotes/earl-nightingale/it-s-difficult-for-people-to-come-to-the-understanding-that-only-a/) [Earl Nightingale](https://sms4smile.com/quotes/author/earl-nightingale/) > [Much like teaching art to young art students age 10 to 15 or so on, you have to break it down into bite-sized pieces,…](https://sms4smile.com/quotes/kehinde-wiley/much-like-teaching-art-to-young-art-students-age-10-to-15-or-so-on/) [Kehinde Wiley](https://sms4smile.com/quotes/author/kehinde-wiley/) > [Neither novels or their readers benefit from any attempts to divine whether any facts hide inside a story. Such efforts attack the very idea…](https://sms4smile.com/quotes/john-green/neither-novels-or-their-readers-benefit-from-any-attempts-to-divine/) [John Green](https://sms4smile.com/quotes/author/john-green/) > [The risk of developing carcinoma of the lung increases steadily as the amount smoked increases. If the risk among non-smokers is taken as unity…](https://sms4smile.com/quotes/richard-doll/the-risk-of-developing-carcinoma-of-the-lung-increases-steadily-as/) [Richard Doll](https://sms4smile.com/quotes/author/richard-doll/) > [Fortunately, the mind is restless; when it uncovers a layer of its own deception, gives up an illusion, exposes a lie, it does not…](https://sms4smile.com/quotes/kim-chernin/fortunately-the-mind-is-restless-when-it-uncovers-a-layer-of-its-own/) [Kim Chernin](https://sms4smile.com/quotes/author/kim-chernin/) > [The possibility of saying anything about a thing rests on the assumption that it preserves its identity, or continues to be the same thing…](https://sms4smile.com/quotes/frank-knight/the-possibility-of-saying-anything-about-a-thing-rests-on-the/) [Frank Knight](https://sms4smile.com/quotes/author/frank-knight/) > [She spent hours drawing on her own, trying to perfect her craft. And when she got into music, she had that same diligence in…](https://sms4smile.com/quotes/laura-joplin/she-spent-hours-drawing-on-her-own-trying-to-perfect-her-craft-and/) [Laura Joplin](https://sms4smile.com/quotes/author/laura-joplin/) > [If they are, then the only ultimate truths are the particulars of concrete experience, and no postulate or general assumption is inherent in science…](https://sms4smile.com/quotes/chauncey-wright/if-they-are-then-the-only-ultimate-truths-are-the-particulars-of/) [Chauncey Wright](https://sms4smile.com/quotes/author/chauncey-wright/) > [If he's - the inference is that somehow he thinks slavery is a - is a noble institution I would - I would strongly…](https://sms4smile.com/quotes/george-w-bush/if-he-s-the-inference-is-that-somehow-he-thinks-slavery-is-a-is-a/) [George W. Bush](https://sms4smile.com/quotes/author/george-w-bush/) > [Leadership, pure and simple, is the assumption of responsibility for the pursuit of excellence in group life.](https://sms4smile.com/quotes/philip-selznick/leadership-pure-and-simple-is-the-assumption-of-responsibility-for/) [Philip Selznick](https://sms4smile.com/quotes/author/philip-selznick/) > [Humans suffer from self-centred notions as to the nature of life. Humans assume that alien life forms should conform to standards that match our…](https://sms4smile.com/quotes/steve-perry/humans-suffer-from-self-centred-notions-as-to-the-nature-of-life/) [Steve Perry](https://sms4smile.com/quotes/author/steve-perry/) > [When I see a fan coming over, I can't help but make an assumption about what they want to talk about. A middle-aged American…](https://sms4smile.com/quotes/natalie-dormer/when-i-see-a-fan-coming-over-i-can-t-help-but-make-an-assumption/) [Natalie Dormer](https://sms4smile.com/quotes/author/natalie-dormer/) > [The Bell curve is a fact of life. The blacks on average score 85 per cent on IQ and it is accurate, nothing to…](https://sms4smile.com/quotes/lee-kuan-yew/the-bell-curve-is-a-fact-of-life-the-blacks-on-average-score-85-per/) [Lee Kuan Yew](https://sms4smile.com/quotes/author/lee-kuan-yew/) > [Pussy Riot have certainly changed some people's assumptions about the role of political art and the relationship between the intelligentsia and the church. That's…](https://sms4smile.com/quotes/masha-gessen/pussy-riot-have-certainly-changed-some-people-s-assumptions-about-the/) [Masha Gessen](https://sms4smile.com/quotes/author/masha-gessen/) [Browse all 1,277 Assumption quotes ](https://sms4smile.com/quotes/about/assumption/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "Assumption is a dangerous conclusion.", "creator": { "@type": "Person", "name": "Terry Mark" }, "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "url": "https://sms4smile.com/quotes/terry-mark/assumption-is-a-dangerous-conclusion/", "about": { "@type": "Thing", "name": "Assumption" }, "@id": "https://sms4smile.com/quotes/terry-mark/assumption-is-a-dangerous-conclusion/#quotation", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg", "contentUrl": "https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg", "url": "https://sms4smile.com/quotes/i/84d/terry-mark-87_assumption_assumption-is-a-dangerous-conclusion-814_814761.jpg", "width": 1080, "height": 1080, "caption": "“Assumption is a dangerous conclusion.” — Terry Mark", "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": "Terry Mark", "item": "https://sms4smile.com/quotes/author/terry-mark/" }, { "@type": "ListItem", "position": 4, "name": "Assumption is a dangerous conclusion.", "item": "https://sms4smile.com/quotes/terry-mark/assumption-is-a-dangerous-conclusion/" } ], "@id": "https://sms4smile.com/quotes/terry-mark/assumption-is-a-dangerous-conclusion/#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 } } ] } ```