--- title: "Meaning & Key Takeaway of: To succeed in science, one must doubt; to…" description: "\"To succeed in science, one must doubt; to succeed in life, one must be sure.\" — Leo Errera" image: "https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg" --- # To succeed in science, one must doubt; to succeed in life… ![“To succeed in science, one must doubt; to succeed in life, one must be sure.” quote by Leo Errera](https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg) [Download](https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg) [Open image](https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg) > “To succeed in science, one must doubt; to succeed in life, one must be sure.” [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Science requires doubt; life requires confidence for success **In simple terms:** Doubt fuels scientific progress; confidence drives life success Key Takeaway Cultivate doubt in inquiry, confidence in living Themes science confidence success Mood inquisitive encouraging Type educational philosophical When to use this quote - research - personal development - education Key Concepts philosophy psychology methodology Questions to Reflect On - How does doubt improve scientific work? - What confidence supports personal growth? A Different Perspective Overconfidence can hinder learning ★ ★ ★ ★ ★ No ratings yet [Doubt](https://sms4smile.com/quotes/about/doubt/) [Life](https://sms4smile.com/quotes/about/life/) [Science](https://sms4smile.com/quotes/about/science/) [Success](https://sms4smile.com/quotes/about/success/) ## Related quotes > [Young people, those who think they're experts in science, there's no doubt. They just believe it, and so there has to be an explanation…](https://sms4smile.com/quotes/rush-limbaugh/young-people-those-who-think-they-re-experts-in-science-there-s-no/) [Rush Limbaugh](https://sms4smile.com/quotes/author/rush-limbaugh/) > [You will encounter many distractions and many temptations to put your goal aside: The security of a job, a wife who wants kids, whatever.…](https://sms4smile.com/quotes/larry-flynt/you-will-encounter-many-distractions-and-many-temptations-to-put-your/) [Larry Flynt](https://sms4smile.com/quotes/author/larry-flynt/) > [Tolerance for uncertainty is the prerequisite to succeeding.](https://sms4smile.com/quotes/david-bayles/tolerance-for-uncertainty-is-the-prerequisite-to-succeeding/) [David Bayles](https://sms4smile.com/quotes/author/david-bayles/) > [I was annoyed from the start by the attitude of doubt by the spectators that I would never really make the flight. This attitude…](https://sms4smile.com/quotes/harriet-quimby/i-was-annoyed-from-the-start-by-the-attitude-of-doubt-by-the/) [Harriet Quimby](https://sms4smile.com/quotes/author/harriet-quimby/) > [At length weariness succeeds to labor, and the mind lies at ease in the contemplation of her own attainments without any desire of new…](https://sms4smile.com/quotes/samuel-johnson/at-length-weariness-succeeds-to-labor-and-the-mind-lies-at-ease-in/) [Samuel Johnson](https://sms4smile.com/quotes/author/samuel-johnson/) > [We don't always know the details of our future. We do not know what lies ahead. We live in a time of uncertainty. We…](https://sms4smile.com/quotes/dieter-f-uchtdorf/we-don-t-always-know-the-details-of-our-future-we-do-not-know-what/) [Dieter F. Uchtdorf](https://sms4smile.com/quotes/author/dieter-f-uchtdorf/) > [Criticism, though dignified from the earliest ages by the labours of men eminent for knowledge and sagacity, has not yet attained the certainty and…](https://sms4smile.com/quotes/samuel-johnson/criticism-though-dignified-from-the-earliest-ages-by-the-labours-of/) [Samuel Johnson](https://sms4smile.com/quotes/author/samuel-johnson/) > [“Men wanted certainties, not more causes for doubt, and since the discoveries of science perplexed them with strange theories about the earth on which…](https://sms4smile.com/quotes/c-v-wedgewood/men-wanted-certainties-not-more-causes-for-doubt-and-since-the/) C. V. Wedgewood > [ \[I\]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/) > [The number of poor, and poorly prepared, students who succeed in college and beyond undercuts the simplistic notion that economic or educational disadvantage is…](https://sms4smile.com/quotes/roland-merullo/the-number-of-poor-and-poorly-prepared-students-who-succeed-in/) [Roland Merullo](https://sms4smile.com/quotes/author/roland-merullo/) > [My willingness to fail gives me the ability to succeed.](https://sms4smile.com/quotes/vinod-khosla/my-willingness-to-fail-gives-me-the-ability-to-succeed/) [Vinod Khosla](https://sms4smile.com/quotes/author/vinod-khosla/) > [The best way to succeed in this world is to act on the advice you give to others.](https://sms4smile.com/quotes/napoleon-hill/the-best-way-to-succeed-in-this-world-is-to-act-on-the-advice-you/) [Napoleon Hill](https://sms4smile.com/quotes/author/napoleon-hill/) > [If at first you don't succeed, try, try again. Then quit. No use being a damn fool about it](https://sms4smile.com/quotes/wc-fields/if-at-first-you-don-t-succeed-try-try-again-then-quit-no-use-being-a/) [WC Fields](https://sms4smile.com/quotes/author/wc-fields/) > [You need to remind people that you vote, you matter, and that they can't succeed without your help.](https://sms4smile.com/quotes/anonymous/you-need-to-remind-people-that-you-vote-you-matter-and-that-they-can/) [Anonymous](https://sms4smile.com/quotes/author/anonymous/) > [“If you start and persist you will succeed.”](https://sms4smile.com/quotes/debasish-mridha/if-you-start-and-persist-you-will-succeed/) [Debasish Mridha](https://sms4smile.com/quotes/author/debasish-mridha/) ## More by Leo Errera > [Dieu, c'est le voile mystérieux sous lequel nous cachons notre ignorance de la cause première. God is the mysterious veil under which we hide…](https://sms4smile.com/quotes/leo-errera/dieu-c-est-le-voile-myst-rieux-sous-lequel-nous-cachons-notre/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > ["Le génie n'est qu'une longue patience", a dit Buffon. Cela est bien incomplet. Le génie, c'est l'impatience dans les idées et la patience dans…](https://sms4smile.com/quotes/leo-errera/le-g-nie-n-est-qu-une-longue-patience-a-dit-buffon-cela-est-bien/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [Truth is on a curve whose asymptote our spirit follows eternally.](https://sms4smile.com/quotes/leo-errera/truth-is-on-a-curve-whose-asymptote-our-spirit-follows-eternally/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [What are we doing down here? We prepare the blossoms of tomorrow. We all manure future humanity.](https://sms4smile.com/quotes/leo-errera/what-are-we-doing-down-here-we-prepare-the-blossoms-of-tomorrow-we/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > ["Genius is just enduring patience," said Buffon. This is far from complete. Genius is impatience in ideas and patience with the facts: a lively…](https://sms4smile.com/quotes/leo-errera/genius-is-just-enduring-patience-said-buffon-this-is-far-from/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [The altruism of foresters can serve as a motto for humanity in general: "We reap what we have not sown. We sow what we…](https://sms4smile.com/quotes/leo-errera/the-altruism-of-foresters-can-serve-as-a-motto-for-humanity-in/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [Isn't this the perfect image of the noblest selflessness, and thereby presents an example and a model? It should be inspiring: like them, we…](https://sms4smile.com/quotes/leo-errera/isn-t-this-the-perfect-image-of-the-noblest-selflessness-and-thereby/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [La vérité est sur une courbe dont notre ésprit suit éternellement l'asymptote. Truth is on a curve whose asymptote our spirit follows eternally.](https://sms4smile.com/quotes/leo-errera/la-v-rit-est-sur-une-courbe-dont-notre-sprit-suit-ternellement-l/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [God is the mysterious veil under which we hide our ignorance of the cause.](https://sms4smile.com/quotes/leo-errera/god-is-the-mysterious-veil-under-which-we-hide-our-ignorance-of-the/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [Truth is different from error in two respects: it is a little harder to prove and more difficult to admit.](https://sms4smile.com/quotes/leo-errera/truth-is-different-from-error-in-two-respects-it-is-a-little-harder/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [The paradox is the seed of truth. This germ just needs a fertile ground to flourish and bear fruit.](https://sms4smile.com/quotes/leo-errera/the-paradox-is-the-seed-of-truth-this-germ-just-needs-a-fertile/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) > [Civilization is the art of creating useless needs.](https://sms4smile.com/quotes/leo-errera/civilization-is-the-art-of-creating-useless-needs/) [Leo Errera](https://sms4smile.com/quotes/author/leo-errera/) [Explore all 13 Leo Errera quotes ](https://sms4smile.com/quotes/author/leo-errera/) ## More Doubt quotes > [I put myself in the student's place and remember the frustrations, doubts, determination, and desires I felt when I was going through the initial…](https://sms4smile.com/quotes/ted-martinez/i-put-myself-in-the-student-s-place-and-remember-the-frustrations/) Ted Martinez > [Because of the womb being a central phenomenon in the feminine body, the whole psychology of woman differs: she is non-aggressive, non-inquiring, non-questioning, non-doubting,…](https://sms4smile.com/quotes/rajneesh/because-of-the-womb-being-a-central-phenomenon-in-the-feminine-body/) [Rajneesh](https://sms4smile.com/quotes/author/rajneesh/) > [I don't doubt that straight white men have identity issues and identity complexes and struggle with defining themselves.](https://sms4smile.com/quotes/justin-simien/i-don-t-doubt-that-straight-white-men-have-identity-issues-and/) [Justin Simien](https://sms4smile.com/quotes/author/justin-simien/) > [“Where there is doubt (shanka), there is misery. The moment one begins to doubt the knowledge that, 'I am Chandubhai,' misery arises. Once one…](https://sms4smile.com/quotes/dada-bhagwan/where-there-is-doubt-shanka-there-is-misery-the-moment-one-begins-to/) [Dada Bhagwan](https://sms4smile.com/quotes/author/dada-bhagwan/) > [We know accurately only when we know little, with knowledge doubt increases.](https://sms4smile.com/quotes/johann-wolfgang-von-goethe/we-know-accurately-only-when-we-know-little-with-knowledge-doubt/) [Johann Wolfgang von Goethe](https://sms4smile.com/quotes/author/johann-wolfgang-von-goethe/) > [There is no doubt in my mind and I know in my time, there will be a Canadian basketball player playing for Toronto Raptors, 100%](https://sms4smile.com/quotes/masai-ujiri/there-is-no-doubt-in-my-mind-and-i-know-in-my-time-there-will-be-a/) [Masai Ujiri](https://sms4smile.com/quotes/author/masai-ujiri/) > [How could you feel worthless when God has honoured you by creating you and choosing you to be with Him, in this life and…](https://sms4smile.com/quotes/yasmin-mogahed/how-could-you-feel-worthless-when-god-has-honoured-you-by-creating/) [Yasmin Mogahed](https://sms4smile.com/quotes/author/yasmin-mogahed/) > [“Let no one hope to find in contemplation an escape from conflict, from anguish or from doubt. On the contrary, the deep, inexpressible certitude…](https://sms4smile.com/quotes/thomas-merton/let-no-one-hope-to-find-in-contemplation-an-escape-from-conflict-from/) [Thomas Merton](https://sms4smile.com/quotes/author/thomas-merton/) > [“Two powerful, little words I've learned to use when facing challenges, fears, and doubts— so what? ”](https://sms4smile.com/quotes/richelle-e-goodrich/two-powerful-little-words-i-ve-learned-to-use-when-facing-challenges/) [Richelle E. Goodrich](https://sms4smile.com/quotes/author/richelle-e-goodrich/) > [For diplomacy to be effective, words must be credible - and no one can now doubt the word of America.](https://sms4smile.com/quotes/george-w-bush/for-diplomacy-to-be-effective-words-must-be-credible-and-no-one-can/) [George W. Bush](https://sms4smile.com/quotes/author/george-w-bush/) > [Vision motivates, sustains and dispels doubt.](https://sms4smile.com/quotes/thomas-young/vision-motivates-sustains-and-dispels-doubt/) [Thomas Young](https://sms4smile.com/quotes/author/thomas-young/) > [One may not doubt that, somehow Good Shall come of Water and of Mud; And sure, the reverent eye must see A purpose in…](https://sms4smile.com/quotes/rupert-brooke/one-may-not-doubt-that-somehow-good-shall-come-of-water-and-of-mud/) [Rupert Brooke](https://sms4smile.com/quotes/author/rupert-brooke/) > [Let smiles overshadow sadness. Let faith make you believe. Let confidence wash away doubts. Let love complete your life.](https://sms4smile.com/quotes/ritu-ghatourey/let-smiles-overshadow-sadness-let-faith-make-you-believe-let/) [Ritu Ghatourey](https://sms4smile.com/quotes/author/ritu-ghatourey/) > [When in doubt, suggest that a subcommittee be appointed.](https://sms4smile.com/quotes/harry-chapman/when-in-doubt-suggest-that-a-subcommittee-be-appointed/) Harry Chapman > [“Those who contemplate never escape the doubt.”](https://sms4smile.com/quotes/henning-mankell/those-who-contemplate-never-escape-the-doubt/) [Henning Mankell](https://sms4smile.com/quotes/author/henning-mankell/) [Browse all 9,582 Doubt quotes ](https://sms4smile.com/quotes/about/doubt/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "To succeed in science, one must doubt; to succeed in life, one must be sure.", "creator": { "@type": "Person", "name": "Leo Errera" }, "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "url": "https://sms4smile.com/quotes/leo-errera/to-succeed-in-science-one-must-doubt-to-succeed-in-life-one-must-be/", "about": { "@type": "Thing", "name": "Doubt" }, "@id": "https://sms4smile.com/quotes/leo-errera/to-succeed-in-science-one-must-doubt-to-succeed-in-life-one-must-be/#quotation", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg", "contentUrl": "https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg", "url": "https://sms4smile.com/quotes/i/f39/leo-errera-33830_doubt_to-succeed-in-science-one-must-doubt-to_2943577.jpg", "width": 1080, "height": 1080, "caption": "“To succeed in science, one must doubt; to succeed in life, one must be sure.” — Leo Errera", "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": "Leo Errera", "item": "https://sms4smile.com/quotes/author/leo-errera/" }, { "@type": "ListItem", "position": 4, "name": "To succeed in science, one must...", "item": "https://sms4smile.com/quotes/leo-errera/to-succeed-in-science-one-must-doubt-to-succeed-in-life-one-must-be/" } ], "@id": "https://sms4smile.com/quotes/leo-errera/to-succeed-in-science-one-must-doubt-to-succeed-in-life-one-must-be/#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 } } ] } ```