--- title: "Meaning & Key Takeaway of: It is a capital mistake to theorize…" description: "\"It is a capital mistake to theorize before you have all the evidence. It biases the judgment.\" — Arthur Conan Doyle" image: "https://sms4smile.com/quotes/i/d46/arthur-conan-doyle-273_classic_it-is-a-capital-mistake-to-theorize-befo_2951237.jpg" --- # It is a capital mistake to theorize before you have all… ![“It is a capital mistake to theorize before you have all the evidence. It biases the judgment.” quote by Arthur Conan Doyle](https://sms4smile.com/quotes/i/d46/arthur-conan-doyle-273_classic_it-is-a-capital-mistake-to-theorize-befo_2951237.jpg) [Download](https://sms4smile.com/quotes/i/d46/arthur-conan-doyle-273_classic_it-is-a-capital-mistake-to-theorize-befo_2951237.jpg) [Open image](https://sms4smile.com/quotes/i/d46/arthur-conan-doyle-273_classic_it-is-a-capital-mistake-to-theorize-befo_2951237.jpg) > “It is a capital mistake to theorize before you have all the evidence. It biases the judgment.” [Arthur Conan Doyle](https://sms4smile.com/quotes/author/arthur-conan-doyle/) ## About This Quote This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation. Formulating theories without full evidence leads to biased judgments. **In simple terms:** Premature theories cause bias. Key Takeaway Gather complete evidence first. Themes critical thinking bias evidence Mood cautious analytical Type philosophical practical When to use this quote - research - legal analysis - decision making Key Concepts philosophy scientific method Questions to Reflect On - How do you guard against bias? - When is acting on limited data necessary? A Different Perspective Evidence may never be complete. ★ ★ ★ ★ ★ No ratings yet [Deductions](https://sms4smile.com/quotes/about/deductions/) [Education](https://sms4smile.com/quotes/about/education/) [Failure](https://sms4smile.com/quotes/about/failure/) [Judgment](https://sms4smile.com/quotes/about/judgment/) [Mistake](https://sms4smile.com/quotes/about/mistake/) [Science](https://sms4smile.com/quotes/about/science/) [Statistics](https://sms4smile.com/quotes/about/statistics/) ## Related quotes > [“No data yet," he answered. "It is a capital mistake to theorize before you have all the evidence. 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