--- title: "Meaning & Key Takeaway of: Professor Johnston often said that if you…" description: "\"“Professor Johnston often said that if you didn't know history, you didn't know anything. You were a leaf that didn't know it was part of a tree.”\" — M..." image: "https://sms4smile.com/quotes/i/2b4/michael-crichton-694_history_professor-johnston-often-said-that-if-yo_2477601.jpg" --- # Professor Johnston often said that if you didn't know… ![“Professor Johnston often said that if you didn't know history, you didn't know anything. You were a leaf that didn't know it was part of a tree.” quote by Michael Crichton](https://sms4smile.com/quotes/i/2b4/michael-crichton-694_history_professor-johnston-often-said-that-if-yo_2477601.jpg) [Download](https://sms4smile.com/quotes/i/2b4/michael-crichton-694_history_professor-johnston-often-said-that-if-yo_2477601.jpg) [Open image](https://sms4smile.com/quotes/i/2b4/michael-crichton-694_history_professor-johnston-often-said-that-if-yo_2477601.jpg) > ““Professor Johnston often said that if you didn't know history, you didn't know anything. You were a leaf that didn't know it was part of a tree.”” [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Understanding history is essential to grasp one's place in a larger context; ignorance isolates you like a leaf unaware of its tree. **In simple terms:** History gives context; ignorance isolates you. Key Takeaway Learn history to see your role in the larger picture. Themes education history identity Mood reflective thoughtful Type educational philosophical When to use this quote - school curricula - personal development - public discourse - policy making Key Concepts contextual awareness interconnectedness Questions to Reflect On - How does knowing history shape your decisions? - What happens when societies ignore their past? A Different Perspective History can be biased or incomplete, leading to misinterpretation. ★ ★ ★ ★ ★ No ratings yet [History](https://sms4smile.com/quotes/about/history/) [Trees](https://sms4smile.com/quotes/about/trees/) ## Related quotes > [If you don't know history, then you don't know anything. You are a leaf that doesn't know it is part of a tree.](https://sms4smile.com/quotes/michael-crichton/if-you-don-t-know-history-then-you-don-t-know-anything-you-are-a-leaf/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [“There's nothing that keeps its youth, so far as I know, but a tree and truth.”](https://sms4smile.com/quotes/oliver-wendell-holmes-sr/there-s-nothing-that-keeps-its-youth-so-far-as-i-know-but-a-tree-and/) [Oliver Wendell Holmes Sr](https://sms4smile.com/quotes/author/oliver-wendell-holmes-sr/) > [Old reference books are like tree rings. Without them, there'd be no way to know what a tree had lived through.](https://sms4smile.com/quotes/jill-lepore/old-reference-books-are-like-tree-rings-without-them-there-d-be-no/) [Jill Lepore](https://sms4smile.com/quotes/author/jill-lepore/) > [“Morty trusted trees far more than he did people. 'You know what a tree can and cannot give you,' he said in one interview.…](https://sms4smile.com/quotes/julia-glass/morty-trusted-trees-far-more-than-he-did-people-you-know-what-a-tree/) [Julia Glass](https://sms4smile.com/quotes/author/julia-glass/) > [“There’s nothing that keeps it’s youth So far as I know, but a tree and the truth ”](https://sms4smile.com/quotes/ogden-nash/there-s-nothing-that-keeps-it-s-youth-so-far-as-i-know-but-a-tree-and/) [Ogden Nash](https://sms4smile.com/quotes/author/ogden-nash/) > [There are young people today who feel that we shouldn't have developed the atomic bomb, that it was a mistake. Through no fault of…](https://sms4smile.com/quotes/glenn-t-seaborg/there-are-young-people-today-who-feel-that-we-shouldn-t-have/) [Glenn T. Seaborg](https://sms4smile.com/quotes/author/glenn-t-seaborg/) > [As you go through history, I didn't think it was going to get quite this close. So it's just one of those recurring things.…](https://sms4smile.com/quotes/george-lucas/as-you-go-through-history-i-didn-t-think-it-was-going-to-get-quite/) [George Lucas](https://sms4smile.com/quotes/author/george-lucas/) > [When I came to write my Thomas Cromwell books, I moved onto the center ground of English history, but I was never there before.…](https://sms4smile.com/quotes/hilary-mantel/when-i-came-to-write-my-thomas-cromwell-books-i-moved-onto-the-center/) [Hilary Mantel](https://sms4smile.com/quotes/author/hilary-mantel/) > [In a very literal way, of course, Shakespeare did change the course of history: when it didn't fit the plot he had in mind,…](https://sms4smile.com/quotes/neil-macgregor/in-a-very-literal-way-of-course-shakespeare-did-change-the-course-of/) [Neil MacGregor](https://sms4smile.com/quotes/author/neil-macgregor/) > [What was the point of living through history if you didn't record it?](https://sms4smile.com/quotes/tatjana-soli/what-was-the-point-of-living-through-history-if-you-didn-t-record-it/) [Tatjana Soli](https://sms4smile.com/quotes/author/tatjana-soli/) > [We have seen over and over that white male historians in general have tended to dismiss any history they didn't themselves write,on the grounds…](https://sms4smile.com/quotes/adrienne-rich/we-have-seen-over-and-over-that-white-male-historians-in-general-have/) [Adrienne Rich](https://sms4smile.com/quotes/author/adrienne-rich/) > [My true love is history, but I didn't know how I could make a living at it.](https://sms4smile.com/quotes/robert-zoellick/my-true-love-is-history-but-i-didn-t-know-how-i-could-make-a-living/) [Robert Zoellick](https://sms4smile.com/quotes/author/robert-zoellick/) > [I knew nothing of American History because I didn't pay attention to American History in school. Because I did not see myself in American…](https://sms4smile.com/quotes/okieriete-onaodowan/i-knew-nothing-of-american-history-because-i-didn-t-pay-attention-to/) [Okieriete Onaodowan](https://sms4smile.com/quotes/author/okieriete-onaodowan/) > [“History didn’t greet us with triumphal fanfares: —it flung dirty sand into our eyes. Ahead of us lay long roads leading nowhere, poisoned wells…](https://sms4smile.com/quotes/wis-awa-szymborska/history-didn-t-greet-us-with-triumphal-fanfares-it-flung-dirty-sand/) [Wisława Szymborska](https://sms4smile.com/quotes/author/wis-awa-szymborska/) > [“We ought to know the history of our ancient ancestors.”](https://sms4smile.com/quotes/lailah-gifty-akita/we-ought-to-know-the-history-of-our-ancient-ancestors/) [Lailah Gifty Akita](https://sms4smile.com/quotes/author/lailah-gifty-akita/) ## More by Michael Crichton > [They are focused on whether they can do something. They never think whether they should do something.](https://sms4smile.com/quotes/michael-crichton/they-are-focused-on-whether-they-can-do-something-they-never-think/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [This is the gift of your species and this is the danger, because you do not choose to control your imaginings. You imagine wonderful…](https://sms4smile.com/quotes/michael-crichton/this-is-the-gift-of-your-species-and-this-is-the-danger-because-you/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [“it is important to recognize that the behavior of the two antagonists mirrors each other, like a Rorschach inkblot. The value of a Rorschach…](https://sms4smile.com/quotes/michael-crichton/it-is-important-to-recognize-that-the-behavior-of-the-two-antagonists/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [Exercise invigorates the body and sharpens the mind.](https://sms4smile.com/quotes/michael-crichton/exercise-invigorates-the-body-and-sharpens-the-mind/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [Social control is best managed through fear.](https://sms4smile.com/quotes/michael-crichton/social-control-is-best-managed-through-fear/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [They always say they didn't. I never heard of one who said, 'You know, I deserve this.' Never happens.](https://sms4smile.com/quotes/michael-crichton/they-always-say-they-didn-t-i-never-heard-of-one-who-said-you-know-i/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [Friendships are nice. So is competence.](https://sms4smile.com/quotes/michael-crichton/friendships-are-nice-so-is-competence/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [I can tell you that second hand smoke is not a health hazard to anyone and never was, and the EPA has always known…](https://sms4smile.com/quotes/michael-crichton/i-can-tell-you-that-second-hand-smoke-is-not-a-health-hazard-to/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [As the practical value of altering consciousness becomes recognized, procedures to effect these alterations will become increasingly ordinary and unremarkable. The whole concept of…](https://sms4smile.com/quotes/michael-crichton/as-the-practical-value-of-altering-consciousness-becomes-recognized/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [In any case, you read with exasperation or amusement the multiple errors in a story-and then turn the page to national or international affairs,…](https://sms4smile.com/quotes/michael-crichton/in-any-case-you-read-with-exasperation-or-amusement-the-multiple/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [Books aren't written - they're rewritten. Including your own. It is one of the hardest things to accept, especially after the seventh rewrite hasn't…](https://sms4smile.com/quotes/michael-crichton/books-aren-t-written-they-re-rewritten-including-your-own-it-is-one/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [The purpose of life is to stay alive. Watch any animal in nature--all it tries to do is stay alive. It doesn't care about…](https://sms4smile.com/quotes/michael-crichton/the-purpose-of-life-is-to-stay-alive-watch-any-animal-in-nature-all/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [One of the things that Americans, as a multiracial society, feel is a tremendous sensitivity to racial comments of all kinds.](https://sms4smile.com/quotes/michael-crichton/one-of-the-things-that-americans-as-a-multiracial-society-feel-is-a/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [Nobody smart knows what they want to do until they get into their twenties or thirties.](https://sms4smile.com/quotes/michael-crichton/nobody-smart-knows-what-they-want-to-do-until-they-get-into-their/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) > [This fascination with computer models is something I understand very well. Richard Feynmann called it a disease. I fear he is right.](https://sms4smile.com/quotes/michael-crichton/this-fascination-with-computer-models-is-something-i-understand-very/) [Michael Crichton](https://sms4smile.com/quotes/author/michael-crichton/) [Explore all 386 Michael Crichton quotes ](https://sms4smile.com/quotes/author/michael-crichton/) ## More History quotes > [Histories never conclude; they just pause their prose. Their stories are, if they are truthful, untidy affairs, resistant to windings-up and sortings-out. They beat…](https://sms4smile.com/quotes/simon-schama/histories-never-conclude-they-just-pause-their-prose-their-stories/) [Simon Schama](https://sms4smile.com/quotes/author/simon-schama/) > [It is said that history turns on small hinges. A human career, too, results from an accumulating series of decisions about large and small…](https://sms4smile.com/quotes/norman-vincent-peale/it-is-said-that-history-turns-on-small-hinges-a-human-career-too/) [Norman Vincent Peale](https://sms4smile.com/quotes/author/norman-vincent-peale/) > [The history of mankind interests us only as it exhibits a steady gain of truth and right, in the incessant conflict which it records…](https://sms4smile.com/quotes/ralph-waldo-emerson/the-history-of-mankind-interests-us-only-as-it-exhibits-a-steady-gain/) [Ralph Waldo Emerson](https://sms4smile.com/quotes/author/ralph-waldo-emerson/) > [In the entire history of the universe, let alone in your own history, there has never been another day just like today, and there…](https://sms4smile.com/quotes/frederick-buechner/in-the-entire-history-of-the-universe-let-alone-in-your-own-history/) [Frederick Buechner](https://sms4smile.com/quotes/author/frederick-buechner/) > [The NBA is my history.](https://sms4smile.com/quotes/penny-hardaway/the-nba-is-my-history/) [Penny Hardaway](https://sms4smile.com/quotes/author/penny-hardaway/) > [History has often showed us the strength of the forces that are unleashed by the yearning for freedom. It moved people to overcome their…](https://sms4smile.com/quotes/angela-merkel/history-has-often-showed-us-the-strength-of-the-forces-that-are/) [Angela Merkel](https://sms4smile.com/quotes/author/angela-merkel/) > [We find few historians who have been diligent enough in their search for truth; it is their common method to take on trust what…](https://sms4smile.com/quotes/john-dryden/we-find-few-historians-who-have-been-diligent-enough-in-their-search/) [John Dryden](https://sms4smile.com/quotes/author/john-dryden/) > [What is history after all? History is facts which become lies in the end.](https://sms4smile.com/quotes/jean-cocteau/what-is-history-after-all-history-is-facts-which-become-lies-in-the/) [Jean Cocteau](https://sms4smile.com/quotes/author/jean-cocteau/) > [Things live and die, and then someone processes them into edible portions. This is a complete telling of the story, 'Food.' The basic plot…](https://sms4smile.com/quotes/david-fahrenthold/things-live-and-die-and-then-someone-processes-them-into-edible/) [David Fahrenthold](https://sms4smile.com/quotes/author/david-fahrenthold/) > [History is a certain way, but you just change the point of view a little bit, and you discover a whole new side of…](https://sms4smile.com/quotes/allison-schroeder/history-is-a-certain-way-but-you-just-change-the-point-of-view-a/) [Allison Schroeder](https://sms4smile.com/quotes/author/allison-schroeder/) > [We're at a point in history were we have to become a part of the neighborhood of inhabited planets, like a neighborhood of a…](https://sms4smile.com/quotes/edgar-mitchell/we-re-at-a-point-in-history-were-we-have-to-become-a-part-of-the/) [Edgar Mitchell](https://sms4smile.com/quotes/author/edgar-mitchell/) > [Today is a reality, tomorrow's a promise, and yesterday's history!](https://sms4smile.com/quotes/billy-blanks/today-is-a-reality-tomorrow-s-a-promise-and-yesterday-s-history/) [Billy Blanks](https://sms4smile.com/quotes/author/billy-blanks/) > [Truth be told from compulsive liars with a history/Everything must change 2nd chances are a mystery](https://sms4smile.com/quotes/c-dash/truth-be-told-from-compulsive-liars-with-a-history-everything-must/) C-DASH > [Every army in the history of the world has always had some deserters, usually much greater than we have today, because once again every…](https://sms4smile.com/quotes/bryan-hilferty/every-army-in-the-history-of-the-world-has-always-had-some-deserters/) [Bryan Hilferty](https://sms4smile.com/quotes/author/bryan-hilferty/) > [“To those great geniuses now in petticoats, who shall write novels for the beloved reader's children, these men and things will be as much…](https://sms4smile.com/quotes/william-makepeace-thackeray/to-those-great-geniuses-now-in-petticoats-who-shall-write-novels-for/) [William Makepeace Thackeray](https://sms4smile.com/quotes/author/william-makepeace-thackeray/) [Browse all 27,263 History quotes ](https://sms4smile.com/quotes/about/history/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "Quotation", "text": "“Professor Johnston often said that if you didn't know history, you didn't know anything. 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