Who said “If all mankind minus one, were of one opinion, and only one person were of the contrary…”?

Verified

John Stuart Mill. A published source records them saying or writing it.

SourceOn Liberty (1859)

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“If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.”
VerifiedOn Liberty (1859) · evidenceDissent
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Cite this quote

For academic work, cite the original where you can: On Liberty (1859).

APA

Mill, J. S. (n.d.). If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind. [Quotation]. Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/1680-if-all-mankind-minus-one-were-of-one/

MLA

Mill, John Stuart. “If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.” Famous Quotations Network, https://www.famous-quotations.com/quotes/1680-if-all-mankind-minus-one-were-of-one/. Accessed 24 Oct. 2026.

Chicago

Mill, John Stuart. “If all mankind minus one, were of one opinion, and only one person were of the contrary opinion, mankind would be no more justified in silencing that one person, than he, if he had the power, would be justified in silencing mankind.” Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/1680-if-all-mankind-minus-one-were-of-one/.