--- title: "Meaning & Key Takeaway of: The fundamental principle of science, the…" description: "\"The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment.\" — Richard P. Feynman" image: "https://sms4smile.com/quotes/i/3c0/richard-p-feynman-495_definitions_the-fundamental-principle-of-science-the_1076846.png" --- # The fundamental principle of science, the definition… ![“The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment.” quote by Richard P. Feynman](https://sms4smile.com/quotes/i/3c0/richard-p-feynman-495_definitions_the-fundamental-principle-of-science-the_1076846.png) [Download](https://sms4smile.com/quotes/i/3c0/richard-p-feynman-495_definitions_the-fundamental-principle-of-science-the_1076846.png) [Open image](https://sms4smile.com/quotes/i/3c0/richard-p-feynman-495_definitions_the-fundamental-principle-of-science-the_1076846.png) > “The fundamental principle of science, the definition almost, is this: the sole test of the validity of any idea is experiment.” [Richard P. Feynman](https://sms4smile.com/quotes/author/richard-p-feynman/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Science validates ideas by testing them against reality; without experiment, theories remain unproven. **In simple terms:** Ideas must be tested. Key Takeaway Rely on experiment to confirm ideas. Themes science empiricism skepticism Mood curious analytical Type educational inspirational When to use this quote - research labs - product development - policy making - education - engineering Key Concepts theory validation methodology Questions to Reflect On - How do you test ideas when experiments are impossible? - What alternatives exist to pure experimentation? A Different Perspective Experiments can be costly or impractical, limiting verification. ★ ★ ★ ★ ★ No ratings yet [Experiment](https://sms4smile.com/quotes/about/experiment/) [Experiments](https://sms4smile.com/quotes/about/experiments/) [Fundamental principle](https://sms4smile.com/quotes/about/fundamental-principle/) [Fundamental principles](https://sms4smile.com/quotes/about/fundamental-principles/) [Ideas](https://sms4smile.com/quotes/about/ideas/) [Principle](https://sms4smile.com/quotes/about/principle/) [Principles](https://sms4smile.com/quotes/about/principles/) [Research](https://sms4smile.com/quotes/about/research/) [Science](https://sms4smile.com/quotes/about/science/) [Tests](https://sms4smile.com/quotes/about/tests/) ## Related quotes > [The principle of science, the definition, almost, is the following: The test of all knowledge is experiment. 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