“I believe it is an established maxim in morals that he who makes an assertion without knowing whether it is true or false, is guilty of falsehood; and the accidental truth of the assertion, does not justify or excuse him.”

Letter to Allen N. Ford (11 August 1846), reported in Roy Prentice Basler, ed., Abraham Lincoln: His Speeches and Writings (1990 [1946])
1840s

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Abraham Lincoln 618
16th President of the United States 1809–1865

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