“The value of a principle is the number of things it will explain; and there is no good theory of disease which does not at once suggest a cure.”
Cite this quote
APA
“The value of a principle is the number of things it will explain; and there is no good theory of disease which does not at once suggest a cure.” [Quotation attributed to Ralph Waldo Emerson]. (n.d.). Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/41169-the-value-of-a-principle-is-the-number/
MLA
“The value of a principle is the number of things it will explain; and there is no good theory of disease which does not at once suggest a cure.” Attributed to Ralph Waldo Emerson. Famous Quotations Network, https://www.famous-quotations.com/quotes/41169-the-value-of-a-principle-is-the-number/. Accessed 24 Oct. 2026.
Chicago
“The value of a principle is the number of things it will explain; and there is no good theory of disease which does not at once suggest a cure.” Attributed to Ralph Waldo Emerson. Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/41169-the-value-of-a-principle-is-the-number/.