We can never be sure that the opinion we are endeavoring to stifle is a false opinion; and if we were sure, stifling it would be an evil still.

Authentication Score 3

Original Citation

Mill, John Stuart. On Liberty. London: J.W. Parker and Son, 1859, ch. 2.

Current Citation

Mill, John Stuart. "On Liberty." On Liberty, Utilitarianism and Other Essays, edited by Mark Philp and Frederick Rosen. Oxford University Press, 2015, ch. 2.