"It is, perhaps, a debatable question, whether a person who has always been notoriously in the habit of lying, has a right to tell the truth; it is, of course, the only device by which he can deceive people."

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Sophistry, like poison, is at once detected and nauseated, when presented to us in a concentrated form; but a fallacy which, when stated barely in a few sentences, would not deceive a child, may deceive half the world, if diluted in a quarto volume.

— Richard Whately