--- title: "Meaning & Key Takeaway of: Theory may be deliberate, as in a chapter…" description: "\"Theory may be deliberate, as in a chapter on chemistry, or it may be second nature, as in the immemorial doctrine of ordinary enduring middle-sized phy..." image: "https://sms4smile.com/quotes/i/02a/willard-van-orman-quine-10137_chapters_theory-may-be-deliberate-as-in-a-chapter_85343.jpg" --- # Theory may be deliberate, as in a chapter on chemistry, or… ![“Theory may be deliberate, as in a chapter on chemistry, or it may be second nature, as in the immemorial doctrine of ordinary enduring middle-sized physical objects.” quote by Willard Van Orman Quine](https://sms4smile.com/quotes/i/02a/willard-van-orman-quine-10137_chapters_theory-may-be-deliberate-as-in-a-chapter_85343.jpg) [Download](https://sms4smile.com/quotes/i/02a/willard-van-orman-quine-10137_chapters_theory-may-be-deliberate-as-in-a-chapter_85343.jpg) [Open image](https://sms4smile.com/quotes/i/02a/willard-van-orman-quine-10137_chapters_theory-may-be-deliberate-as-in-a-chapter_85343.jpg) > “Theory may be deliberate, as in a chapter on chemistry, or it may be second nature, as in the immemorial doctrine of ordinary enduring middle-sized physical objects.” [Willard Van Orman Quine](https://sms4smile.com/quotes/author/willard-van-orman-quine/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. The quote distinguishes between formal, taught theories and the intuitive, ingrained understanding of everyday physical reality. **In simple terms:** Contrast between formal theory and intuitive knowledge. Key Takeaway Theory can be explicit or implicit. Themes Epistemology Philosophy of Science Cognition Ontology Education Mood Reflective Intellectual Analytical Type Philosophical observation Educational insight When to use this quote - Teaching a chemistry class - Explaining everyday physics - Designing a physics curriculum - Discussing common-sense reasoning - Analyzing scientific concepts Key Concepts Theory vs. intuition Physical objects Doctrine Middle-sized objects Immemorial knowledge Practical Applications - Developing educational materials - Improving scientific communication Questions to Reflect On - How does implicit knowledge shape scientific progress? - When does formal theory become unnecessary? ★ ★ ★ ★ ★ No ratings yet [Chemistry](https://sms4smile.com/quotes/about/chemistry/) [Deliberate](https://sms4smile.com/quotes/about/deliberate/) [Doctrine](https://sms4smile.com/quotes/about/doctrine/) ## Related quotes > [When certain concepts of TeX are introduced informally, general rules will be stated; afterwards you will find that the rules aren't strictly true. 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