A man cannot prove a negative, but he has a right to claim that when a man makes an affirmative charge, he must offer some proof to show the truth of what he says.
Editor's note · Context
In a debate, Lincoln asserts a fundamental principle of logic regarding the burden of proof for affirmative claims.
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Now, therefore, be it known that I, Abraham Lincoln, President of the United States, do issue this my proclamation, as required by said act, ordering and requiting all deserters to return to their proper posts;
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