--- title: "2 Doubt Things Quotes By Leonardo da Vinci" description: "2 Doubt Things quotes by Leonardo da Vinci. Plus more from Leonardo da Vinci and more Doubt Things sayings from other authors." image: "https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg" --- > [We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.](https://sms4smile.com/quotes/leonardo-da-vinci/we-must-doubt-the-certainty-of-everything-which-passes-through-the/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) [Image](https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg) > [“To me it seems that those sciences are vain and full of error which are not born of experience, mother of all certainty, first-hand experience which in its origins, or means, or end has passed through one of the five…](https://sms4smile.com/quotes/leonardo-da-vinci/to-me-it-seems-that-those-sciences-are-vain-and-full-of-error-which/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) [Image](https://sms4smile.com/quotes/i/b8d/leonardo-da-vinci-330_doubt_to-me-it-seems-that-those-sciences-are-v_1030797.jpg) ## More by Leonardo da Vinci > [The evil which does me no harm is like the good which in no wise avails me.](https://sms4smile.com/quotes/leonardo-da-vinci/the-evil-which-does-me-no-harm-is-like-the-good-which-in-no-wise/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.](https://sms4smile.com/quotes/leonardo-da-vinci/a-painter-should-begin-every-canvas-with-a-wash-of-black-because-all/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Nothing can be love or hated unless it is first known.](https://sms4smile.com/quotes/leonardo-da-vinci/nothing-can-be-love-or-hated-unless-it-is-first-known/) [Leonardo Da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [An arch consists of two weaknesses which, leaning one against the other, make a strength.](https://sms4smile.com/quotes/leonardo-da-vinci/an-arch-consists-of-two-weaknesses-which-leaning-one-against-the/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [But to me all sciences seem vain and full of error that are not born of experience, mother of all certainty, and do not…](https://sms4smile.com/quotes/leonardo-da-vinci/but-to-me-all-sciences-seem-vain-and-full-of-error-that-are-not-born/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [“Time stays long enough for those who use it.”](https://sms4smile.com/quotes/leonardo-da-vinci/time-stays-long-enough-for-those-who-use-it/) [Leonardo Da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [It is ordained that to the ambitious, who derive no satisfaction from the gifts of life and the beauty of the world, life shall…](https://sms4smile.com/quotes/leonardo-da-vinci/it-is-ordained-that-to-the-ambitious-who-derive-no-satisfaction-from/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Be a mirror, absorb everything around you and still remain the same](https://sms4smile.com/quotes/leonardo-da-vinci/be-a-mirror-absorb-everything-around-you-and-still-remain-the-same/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Your brain is much better than you think; just use it!](https://sms4smile.com/quotes/leonardo-da-vinci/your-brain-is-much-better-than-you-think-just-use-it/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Necessity is a guardian in Nature.](https://sms4smile.com/quotes/leonardo-da-vinci/necessity-is-a-guardian-in-nature/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking,…](https://sms4smile.com/quotes/leonardo-da-vinci/human-subtlety-will-never-devise-an-invention-more-beautiful-more/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [People reveal themselves completely only when they are thrown out of the customary conditions of their life.](https://sms4smile.com/quotes/leonardo-da-vinci/people-reveal-themselves-completely-only-when-they-are-thrown-out-of/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [To be a winner you must want to win but must know of the chance of losing and must not fear of it.](https://sms4smile.com/quotes/leonardo-da-vinci/to-be-a-winner-you-must-want-to-win-but-must-know-of-the-chance-of/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Nature is so delightful and abundant in its variations that among trees of the same kind there would not be found one which nearly…](https://sms4smile.com/quotes/leonardo-da-vinci/nature-is-so-delightful-and-abundant-in-its-variations-that-among/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) > [Wisdom is the daughter of experience](https://sms4smile.com/quotes/leonardo-da-vinci/wisdom-is-the-daughter-of-experience/) [Leonardo da Vinci](https://sms4smile.com/quotes/author/leonardo-da-vinci/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "ItemList", "@id": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/#itemlist", "name": "2 Doubt Things Quotes By Leonardo da Vinci", "numberOfItems": 2, "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Quotation", "text": "We must doubt the certainty of everything which passes through the senses, but how much more ought we to doubt things contrary to the senses, such as the existence of God and the soul.", "creator": { "@type": "Person", "name": "Leonardo da Vinci" }, "url": "https://sms4smile.com/quotes/leonardo-da-vinci/we-must-doubt-the-certainty-of-everything-which-passes-through-the/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg", "contentUrl": "https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg", "url": "https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg", "width": 1080, "height": 1080, "caption": "“We must doubt the certainty of everything which passes through the senses, but how much more ought we to…” — Leonardo da Vinci", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 2, "item": { "@type": "Quotation", "text": "“To me it seems that those sciences are vain and full of error which are not born of experience, mother of all certainty, first-hand experience which in its origins, or means, or end has passed through one of the five senses. And if we doubt the certainty of everything which passes through the senses, how much more ought we to doubt things contrary to these senses – ribelli ad essi sensi – such as the existence of God or of the soul or similar things over which there is always dispute and contention. And in fact it happens that whenever reason is wanting men to cry out against one another, which does not happen with certainties. For this reason we shall say that where the cry of controversy is heard, there is no true science, because the truth has one single end and when this is published, argument is destroyed for ever.”", "creator": { "@type": "Person", "name": "Leonardo da Vinci" }, "url": "https://sms4smile.com/quotes/leonardo-da-vinci/to-me-it-seems-that-those-sciences-are-vain-and-full-of-error-which/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/b8d/leonardo-da-vinci-330_doubt_to-me-it-seems-that-those-sciences-are-v_1030797.jpg", "contentUrl": "https://sms4smile.com/quotes/i/b8d/leonardo-da-vinci-330_doubt_to-me-it-seems-that-those-sciences-are-v_1030797.jpg", "url": "https://sms4smile.com/quotes/i/b8d/leonardo-da-vinci-330_doubt_to-me-it-seems-that-those-sciences-are-v_1030797.jpg", "width": 1080, "height": 1080, "caption": "“To me it seems that those sciences are vain and full of error which are not born of experience, mother of…” — Leonardo da Vinci", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } } ] }, { "@type": "CollectionPage", "@id": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/#webpage", "url": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/", "name": "Doubt Things Quotes by Leonardo da Vinci", "isPartOf": { "@id": "https://sms4smile.com/quotes/#website" }, "mainEntity": { "@id": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/#itemlist" }, "primaryImageOfPage": { "@id": "https://sms4smile.com/quotes/i/fff/leonardo-da-vinci-330_certainty_we-must-doubt-the-certainty-of-everythin_813800.jpg" }, "description": "2 Doubt Things quotes by Leonardo da Vinci. Plus more from Leonardo da Vinci and more Doubt Things sayings from other authors.", "breadcrumb": { "@id": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/#breadcrumb" } }, { "@type": "BreadcrumbList", "@id": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/#breadcrumb", "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": "Topics", "item": "https://sms4smile.com/quotes/categories/" }, { "@type": "ListItem", "position": 4, "name": "Doubt Things", "item": "https://sms4smile.com/quotes/about/doubt-things/" }, { "@type": "ListItem", "position": 5, "name": "Leonardo da Vinci", "item": "https://sms4smile.com/quotes/about/doubt-things/leonardo-da-vinci/" } ] }, { "@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 } } ] } ```