Every man has a right to his own opinion, but no man has a right to be wrong in his facts.


Deming Headlight (New Mexico), 6 January 1950, as cited in the Yale Book of Modern Proverbs and at There Are Opinions, And Then There Are Facts; Freakonomics blog post by Fred R. Shapiro (18 August 2011)


Every man has a right to his own opinion, but no man has a right to be wrong in his facts.

Every man has a right to his own opinion, but no man has a right to be wrong in his facts.

Every man has a right to his own opinion, but no man has a right to be wrong in his facts.

Every man has a right to his own opinion, but no man has a right to be wrong in his facts.