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

Verified

Robert Green Ingersoll. A published source records them saying or writing it.

Source"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

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“Reason, observation, and experience; the holy trinity of science.”
— Robert Green Ingersoll
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

Cite this quote

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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“Kindness is the sunshine in which virtue grows.”
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“Anger is a wind which blows out the lamp of the mind.”
Anger
“The more liberty you give away the more you will have.”
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All 28 Robert Green Ingersoll quotes →