--- title: "Meaning & Key Takeaway of: The belief in an external world…" description: "\"The belief in an external world independent of the perceiving subject is the basis of all natural science. Since, however, sense perception only gives ..." image: "https://sms4smile.com/quotes/i/2aa/albert-einstein-33_bases_the-belief-in-an-external-world-independ_1451309.jpg" --- # The belief in an external world independent of the… ![“The belief in an external world independent of the perceiving subject is the basis of all natural science. Since, however, sense perception only gives information of this external world or of "physical reality" indirectly, we can only grasp the latter by speculative means. It follows from this…” quote by Albert Einstein](https://sms4smile.com/quotes/i/2aa/albert-einstein-33_bases_the-belief-in-an-external-world-independ_1451309.jpg) [Download](https://sms4smile.com/quotes/i/2aa/albert-einstein-33_bases_the-belief-in-an-external-world-independ_1451309.jpg) [Open image](https://sms4smile.com/quotes/i/2aa/albert-einstein-33_bases_the-belief-in-an-external-world-independ_1451309.jpg) > “The belief in an external world independent of the perceiving subject is the basis of all natural science. Since, however, sense perception only gives information of this external world or of "physical reality" indirectly, we can only grasp the latter by speculative means. It follows from this that our notions of physical reality can never be final. We must always be ready to change these notions - that is to say, the axiomatic basis of physics - in order to do justice to perceived facts in the most perfect way.” [Albert Einstein](https://sms4smile.com/quotes/author/albert-einstein/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Our knowledge of the external world is indirect; scientific theories are provisional and must stay open to revision as new evidence emerges. **In simple terms:** Science is a best‑guess model that can change with new data. Key Takeaway Stay open to updating scientific ideas. Themes science philosophy epistemology uncertainty progress Mood curious reflective inquisitive Type theoretical educational philosophical When to use this quote - research labs - academic curricula - public science communication Key Concepts falsifiability theory change empiricism Questions to Reflect On - What evidence would cause a major theory shift? - How do we balance skepticism with confidence? 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Our hearing extends to a small distance. Our sight is…](https://sms4smile.com/quotes/nikola-tesla/our-senses-enable-us-to-perceive-only-a-minute-portion-of-the-outside/) [Nikola Tesla](https://sms4smile.com/quotes/author/nikola-tesla/) > [During long periods of history, the mode of human sense perception changes with humanity’s entire mode of existence. 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