“Reason, observation, and…” – Robert Green Ingersoll

“Reason, observation, and experience; the holy trinity of science.”

Verified"The Gods" (1876) as published in The Gods and Other Lectures (1879); this was one of his earliest versions of what became known as his "Creed". Some variants · evidenceScience and Scientists

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For academic work, cite the original where you can: "The Gods" (1876) as published in The Gods and Other Lectures (1879); this was one of his earliest versions of what became known as his "Creed". Some variants.

APA

Ingersoll, R. G. (n.d.). Reason, observation, and experience; the holy trinity of science. [Quotation]. Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/36847-reason-observation-and-experience-the-holy-trinity-of/

MLA

Ingersoll, Robert Green. “Reason, observation, and experience; the holy trinity of science.” Famous Quotations Network, https://www.famous-quotations.com/quotes/36847-reason-observation-and-experience-the-holy-trinity-of/. Accessed 24 Oct. 2026.

Chicago

Ingersoll, Robert Green. “Reason, observation, and experience; the holy trinity of science.” Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/36847-reason-observation-and-experience-the-holy-trinity-of/.

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