The curious notion that “truth” does not mean “correspondence with reality,” but nothing more than the successful passing of tests for truth, was dea… - Martin Gardner

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The curious notion that “truth” does not mean “correspondence with reality,” but nothing more than the successful passing of tests for truth, was dealt a death blow by Alfred Tarski’s famous semantic definition of truth: “snow is white” is true if and only if snow is white. The definition goes back to Aristotle. Most philosophers of the past, all scientists, and all ordinary people accept this definition of what they mean when they say some thing is true. It is denied only by a small minority of pragmatists who still buy John Dewey’s obsolete epistemology.

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About Martin Gardner

Martin Gardner (October 21, 1914 – May 22, 2010) was an American recreational mathematician, magician, skeptic, and author of the long-running "Mathematical Games" column in Scientific American from 1956 to 1981.

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Alternative Names: Armand T. Ringer
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Additional quotes by Martin Gardner

To support his conviction that the Old Testament is accurate history, Newton worked out an elaborate chronology of earth’s history, drawing on astronomical data such as eclipses and star motions and legends such as that of Jason and the Argonauts, which he took to be genuine events. With incredible ingenuity he tried to harmonize biblical history with secular histories of the ancient world. It is sad to envision the discoveries in mathematics and physics Newton might have made if his great intellect had not been diverted by such bizarre speculations.

My attack on Freud brought a raft of angry letters from dedicated Freudians. One reader assured me that Freudianism is “alive and well.” True, but alive and well only among a dwindling remnant of Freud acolytes, not among the majority of today’s psychiatrists or intellectuals.

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