Who said “The measure of a man's real character is what he would do if he knew he would never be…”?

Disputed

It's credited to Thomas B. Macaulay, but no reliable source from their lifetime has been found.

What the research foundNo reliable early source found for Thomas B. Macaulay.

Evidence: Wikiquote · How we check

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“The measure of a man's real character is what he would do if he knew he would never be found out.”
DisputedNo reliable early source found for Thomas B. Macaulay. · evidenceCharacter
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Cite this quote

APA

“The measure of a man's real character is what he would do if he knew he would never be found out.” [Quotation attributed to Thomas B. Macaulay]. (n.d.). Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/9439-the-measure-of-a-mans-real-character-is/

MLA

“The measure of a man's real character is what he would do if he knew he would never be found out.” Attributed to Thomas B. Macaulay. Famous Quotations Network, https://www.famous-quotations.com/quotes/9439-the-measure-of-a-mans-real-character-is/. Accessed 24 Oct. 2026.

Chicago

“The measure of a man's real character is what he would do if he knew he would never be found out.” Attributed to Thomas B. Macaulay. Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/9439-the-measure-of-a-mans-real-character-is/.