---
title: "Meaning & Key Takeaway of: Don't confuse hypothesis and theory. The…"
description: "\"Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose..."
image: "https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg"
---

#  Don't confuse hypothesis and theory. The former is a…

![“Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.” quote by Martin H. Fischer](https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg)   [Download](https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg) [Open image](https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg)

> “Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.”

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

## About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Distinguishes hypothesis (tentative) from theory (well‑supported) and emphasizes theory’s role as science’s goal.

**In simple terms:** Hypothesis is a guess; theory is proven.

Key Takeaway

Aim for robust evidence before claiming theory.

Themes

science methodology critical thinking

Mood

analytical inquisitive

Type

educational informational

When to use this quote

- research design
- academic writing
- policy making

Key Concepts

hypothesis theory validation

Questions to Reflect On

- How do you decide when a hypothesis is ready for theory status?
- What evidence is needed to elevate a hypothesis?

A Different Perspective

A hypothesis may become a theory only after extensive testing, which can be costly.

★ ★ ★ ★ ★   No ratings yet

[Confuse Hypothesis](https://sms4smile.com/quotes/about/confuse-hypothesis-1575547/) [Hypothesis](https://sms4smile.com/quotes/about/hypothesis/) [Hypothesis Theory](https://sms4smile.com/quotes/about/hypothesis-theory-1575548/) [Possible](https://sms4smile.com/quotes/about/possible/) [Purpose](https://sms4smile.com/quotes/about/purpose/) [Science](https://sms4smile.com/quotes/about/science/) [Theory](https://sms4smile.com/quotes/about/theory/) [Theory Purpose](https://sms4smile.com/quotes/about/theory-purpose-1575546/)

## Related quotes

> [“Occam's Razor" was a principle designed to urge one to select the hypothesis or theory that made the fewest assumptions. Though on the surface…](https://sms4smile.com/quotes/steven-konkoly/occam-s-razor-was-a-principle-designed-to-urge-one-to-select-the/)

[Steven Konkoly](https://sms4smile.com/quotes/author/steven-konkoly/)

> [Do not say hypothesis, and even less theory: say way of thinking.](https://sms4smile.com/quotes/georg-c-lichtenberg/do-not-say-hypothesis-and-even-less-theory-say-way-of-thinking/)

[Georg C. Lichtenberg](https://sms4smile.com/quotes/author/georg-c-lichtenberg/)

> [A hypothesis or theory is clear, decisive, and positive, but it is believed by no one but the man who created it. Experimental findings,…](https://sms4smile.com/quotes/harlow-shapley/a-hypothesis-or-theory-is-clear-decisive-and-positive-but-it-is/)

[Harlow Shapley](https://sms4smile.com/quotes/author/harlow-shapley/)

> [Dad was a philosopher and had what he called his Theory of Purpose, which held that everything in life had a purpose, and unless…](https://sms4smile.com/quotes/jeannette-walls/dad-was-a-philosopher-and-had-what-he-called-his-theory-of-purpose/)

[Jeannette Walls](https://sms4smile.com/quotes/author/jeannette-walls/)

> [“My theory is that the purpose of art is to transmit universal truths of a sort, but of a particular sort, that in art,…](https://sms4smile.com/quotes/walker-percy/my-theory-is-that-the-purpose-of-art-is-to-transmit-universal-truths/)

[Walker Percy](https://sms4smile.com/quotes/author/walker-percy/)

> [A hypothesis is empirical or scientific only if it can be tested by experience. A hypothesis or theory which cannot be, at least in…](https://sms4smile.com/quotes/francisco-j-ayala/a-hypothesis-is-empirical-or-scientific-only-if-it-can-be-tested-by/)

[Francisco J. Ayala](https://sms4smile.com/quotes/author/francisco-j-ayala/)

> [“I am now convinced that we have recently become possessed of experimental evidence of the discrete or grained nature of matter, which the atomic…](https://sms4smile.com/quotes/wilhelm-ostwald/i-am-now-convinced-that-we-have-recently-become-possessed-of/)

[Wilhelm Ostwald](https://sms4smile.com/quotes/author/wilhelm-ostwald/)

> [Evolutionary game theory was originally developed as an alternative to the hypothesis of group selection; now it is clear that game theory models postulate…](https://sms4smile.com/quotes/elliott-sober/evolutionary-game-theory-was-originally-developed-as-an-alternative/)

[Elliott Sober](https://sms4smile.com/quotes/author/elliott-sober/)

> [Evolution is not a fact. Evolution doesn't even qualify as a theory or as a hypothesis. It is a metaphysical research program, and it…](https://sms4smile.com/quotes/karl-popper/evolution-is-not-a-fact-evolution-doesn-t-even-qualify-as-a-theory-or/)

[Karl Popper](https://sms4smile.com/quotes/author/karl-popper/)

> [Even mistaken hypotheses and theories are of use in leading to discoveries. This remark is true in all the sciences. The alchemists founded chemistry…](https://sms4smile.com/quotes/claude-bernard/even-mistaken-hypotheses-and-theories-are-of-use-in-leading-to/)

[Claude Bernard](https://sms4smile.com/quotes/author/claude-bernard/)

> [Whether statistics be an art or a science... or a scientific art, we concern ourselves little. It is the basis of social and political…](https://sms4smile.com/quotes/adolphe-quetelet/whether-statistics-be-an-art-or-a-science-or-a-scientific-art-we/)

[Adolphe Quetelet](https://sms4smile.com/quotes/author/adolphe-quetelet/)

> [When it comes to explaining human thought and behavior, the possibility that heredity plays any role at all still has the power to shock.…](https://sms4smile.com/quotes/steven-pinker/when-it-comes-to-explaining-human-thought-and-behavior-the/)

[Steven Pinker](https://sms4smile.com/quotes/author/steven-pinker/)

> [I am quite conscious that my speculations run beyond the bounds of true science…It is a mere rag of an hypothesis with as many…](https://sms4smile.com/quotes/charles-darwin/i-am-quite-conscious-that-my-speculations-run-beyond-the-bounds-of/)

[Charles Darwin](https://sms4smile.com/quotes/author/charles-darwin/)

> [The greatest problem for mathematicians now is probably the Riemann Hypothesis.](https://sms4smile.com/quotes/andrew-wiles/the-greatest-problem-for-mathematicians-now-is-probably-the-riemann/)

[Andrew Wiles](https://sms4smile.com/quotes/author/andrew-wiles/)

> [There are, after all, atheists who say they wish the fable were true but are unable to suspend the requisite disbelief, or who have…](https://sms4smile.com/quotes/christopher-hitchens/there-are-after-all-atheists-who-say-they-wish-the-fable-were-true/)

[Christopher Hitchens](https://sms4smile.com/quotes/author/christopher-hitchens/)

## More by Martin H. Fischer

> [Whenever ideas fail, men invent words.](https://sms4smile.com/quotes/martin-h-fischer/whenever-ideas-fail-men-invent-words/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [A man who cannot work without his hypodermic needle is a poor doctor. The amount of narcotic you use is inversely proportional to your…](https://sms4smile.com/quotes/martin-h-fischer/a-man-who-cannot-work-without-his-hypodermic-needle-is-a-poor-doctor/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Don't despise empiric truth. Lots of things work in practice for which the laboratory has never found proof.](https://sms4smile.com/quotes/martin-h-fischer/don-t-despise-empiric-truth-lots-of-things-work-in-practice-for-which/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [You must learn to talk clearly. The jargon of scientific terminology which rolls off your tongues is mental garbage.](https://sms4smile.com/quotes/martin-h-fischer/you-must-learn-to-talk-clearly-the-jargon-of-scientific-terminology/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [A good teacher must know the rules; a good pupil, the exceptions.](https://sms4smile.com/quotes/martin-h-fischer/a-good-teacher-must-know-the-rules-a-good-pupil-the-exceptions/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Diagnosis is not the end, but the beginning of practice.](https://sms4smile.com/quotes/martin-h-fischer/diagnosis-is-not-the-end-but-the-beginning-of-practice/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [In the sick room, ten cents' worth of human understanding equals ten dollars' worth of medical science.](https://sms4smile.com/quotes/martin-h-fischer/in-the-sick-room-ten-cents-worth-of-human-understanding-equals-ten/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Facts are not science - as the dictionary is not literature.](https://sms4smile.com/quotes/martin-h-fischer/facts-are-not-science-as-the-dictionary-is-not-literature/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [None of the great discoveries was made by a 'specialist' or a 'researcher'.](https://sms4smile.com/quotes/martin-h-fischer/none-of-the-great-discoveries-was-made-by-a-specialist-or-a-researcher/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [In diagnosis think of the easy first.](https://sms4smile.com/quotes/martin-h-fischer/in-diagnosis-think-of-the-easy-first/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Research has been called good business, a necessity, a gamble, a game. It is none of these - it's a state of mind.](https://sms4smile.com/quotes/martin-h-fischer/research-has-been-called-good-business-a-necessity-a-gamble-a-game-it/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [I find that most men would rather have their bellies opened for five hundred dollars than have a tooth pulled for five.](https://sms4smile.com/quotes/martin-h-fischer/i-find-that-most-men-would-rather-have-their-bellies-opened-for-five/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [The practice of medicine is a thinker's art the practice of surgery a plumber's.](https://sms4smile.com/quotes/martin-h-fischer/the-practice-of-medicine-is-a-thinker-s-art-the-practice-of-surgery-a/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Here's good advice for practice: go into partnership with nature; she does more than half the work and asks none of the fee.](https://sms4smile.com/quotes/martin-h-fischer/here-s-good-advice-for-practice-go-into-partnership-with-nature-she/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

> [Education is the process of driving a set of prejudices down your throat.](https://sms4smile.com/quotes/martin-h-fischer/education-is-the-process-of-driving-a-set-of-prejudices-down-your/)

[Martin H. Fischer](https://sms4smile.com/quotes/author/martin-h-fischer/)

[Explore all 22 Martin H. Fischer quotes ](https://sms4smile.com/quotes/author/martin-h-fischer/)

## More Hypothesis quotes

> [There are, after all, atheists who say they wish the fable were true but are unable to suspend the requisite disbelief, or who have…](https://sms4smile.com/quotes/christopher-hitchens/there-are-after-all-atheists-who-say-they-wish-the-fable-were-true/)

[Christopher Hitchens](https://sms4smile.com/quotes/author/christopher-hitchens/)

> [The greatest problem for mathematicians now is probably the Riemann Hypothesis.](https://sms4smile.com/quotes/andrew-wiles/the-greatest-problem-for-mathematicians-now-is-probably-the-riemann/)

[Andrew Wiles](https://sms4smile.com/quotes/author/andrew-wiles/)

> [I am quite conscious that my speculations run beyond the bounds of true science…It is a mere rag of an hypothesis with as many…](https://sms4smile.com/quotes/charles-darwin/i-am-quite-conscious-that-my-speculations-run-beyond-the-bounds-of/)

[Charles Darwin](https://sms4smile.com/quotes/author/charles-darwin/)

> [When it comes to explaining human thought and behavior, the possibility that heredity plays any role at all still has the power to shock.…](https://sms4smile.com/quotes/steven-pinker/when-it-comes-to-explaining-human-thought-and-behavior-the/)

[Steven Pinker](https://sms4smile.com/quotes/author/steven-pinker/)

> [Whether statistics be an art or a science... or a scientific art, we concern ourselves little. It is the basis of social and political…](https://sms4smile.com/quotes/adolphe-quetelet/whether-statistics-be-an-art-or-a-science-or-a-scientific-art-we/)

[Adolphe Quetelet](https://sms4smile.com/quotes/author/adolphe-quetelet/)

> [In science, each new result, sometimes quite surprising, heralds a step forward and allows one to discard some hypotheses, even though one or two…](https://sms4smile.com/quotes/stanley-b-prusiner/in-science-each-new-result-sometimes-quite-surprising-heralds-a-step/)

[Stanley B. Prusiner](https://sms4smile.com/quotes/author/stanley-b-prusiner/)

> [It is a good morning exercise for a research scientist to discard a pet hypothesis every day before breakfast. It keeps him young.](https://sms4smile.com/quotes/konrad-lorenz/it-is-a-good-morning-exercise-for-a-research-scientist-to-discard-a/)

[Konrad Lorenz](https://sms4smile.com/quotes/author/konrad-lorenz/)

> [“The only part of evolution in which any considerable interest is felt is evolution applied to man. A hypothesis in regard to the rocks…](https://sms4smile.com/quotes/william-jennings-bryan/the-only-part-of-evolution-in-which-any-considerable-interest-is-felt/)

[William Jennings Bryan](https://sms4smile.com/quotes/author/william-jennings-bryan/)

> [The religious hypothesis, therefore, must be considered only as a particular method of accounting for the visible phenomena of the universe: but no just…](https://sms4smile.com/quotes/david-hume/the-religious-hypothesis-therefore-must-be-considered-only-as-a/)

[David Hume](https://sms4smile.com/quotes/author/david-hume/)

> [From the almost total absence of fossil evidence relative to the origin of the phyla, it follows that any explanation of the mechanism in…](https://sms4smile.com/quotes/pierre-paul-grasse/from-the-almost-total-absence-of-fossil-evidence-relative-to-the/)

[Pierre-Paul Grasse](https://sms4smile.com/quotes/author/pierre-paul-grasse/)

> [There's a scientific hypothesis that every person's name is a primary suggestive command that contains the entire script of their life in highly concentrated…](https://sms4smile.com/quotes/victor-pelevin/there-s-a-scientific-hypothesis-that-every-person-s-name-is-a-primary/)

[Victor Pelevin](https://sms4smile.com/quotes/author/victor-pelevin/)

> [Whenever known and sufficient causes are available, it is anti-scientific to discard them in favour of a hypothesis that can never be verified.](https://sms4smile.com/quotes/max-weber/whenever-known-and-sufficient-causes-are-available-it-is-anti/)

[Max Weber](https://sms4smile.com/quotes/author/max-weber/)

> [...but then the general trouble with ignorance is always that the ignorant person has no idea that that's what they are. You can be…](https://sms4smile.com/quotes/louis-de-bernieres/but-then-the-general-trouble-with-ignorance-is-always-that-the/)

[Louis de Bernieres](https://sms4smile.com/quotes/author/louis-de-bernieres/)

> [Even mistaken hypotheses and theories are of use in leading to discoveries. This remark is true in all the sciences. The alchemists founded chemistry…](https://sms4smile.com/quotes/claude-bernard/even-mistaken-hypotheses-and-theories-are-of-use-in-leading-to/)

[Claude Bernard](https://sms4smile.com/quotes/author/claude-bernard/)

> [If I were to awaken after having slept for a thousand years, my first question would be: Has the Riemann hypothesis been proven?](https://sms4smile.com/quotes/david-hilbert/if-i-were-to-awaken-after-having-slept-for-a-thousand-years-my-first/)

[David Hilbert](https://sms4smile.com/quotes/author/david-hilbert/)

[Browse all 582 Hypothesis quotes ](https://sms4smile.com/quotes/about/hypothesis/)

```json
{
    "@context": "https://schema.org",
    "@graph": [
        {
            "@type": "Quotation",
            "text": "Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.",
            "creator": {
                "@type": "Person",
                "name": "Martin H. Fischer"
            },
            "isPartOf": {
                "@id": "https://sms4smile.com/quotes/#website"
            },
            "url": "https://sms4smile.com/quotes/martin-h-fischer/don-t-confuse-hypothesis-and-theory-the-former-is-a-possible/",
            "about": {
                "@type": "Thing",
                "name": "Hypothesis"
            },
            "@id": "https://sms4smile.com/quotes/martin-h-fischer/don-t-confuse-hypothesis-and-theory-the-former-is-a-possible/#quotation",
            "image": {
                "@type": "ImageObject",
                "@id": "https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg",
                "contentUrl": "https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg",
                "url": "https://sms4smile.com/quotes/i/d45/martin-h-fischer-25935_possible_don-t-confuse-hypothesis-and-theory-the_1747592.jpg",
                "width": 1080,
                "height": 1080,
                "caption": "“Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The…” — Martin H. Fischer",
                "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": "Martin H. Fischer",
                    "item": "https://sms4smile.com/quotes/author/martin-h-fischer/"
                },
                {
                    "@type": "ListItem",
                    "position": 4,
                    "name": "Don't confuse hypothesis and theory. The...",
                    "item": "https://sms4smile.com/quotes/martin-h-fischer/don-t-confuse-hypothesis-and-theory-the-former-is-a-possible/"
                }
            ],
            "@id": "https://sms4smile.com/quotes/martin-h-fischer/don-t-confuse-hypothesis-and-theory-the-former-is-a-possible/#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
            }
        }
    ]
}
```