"Dirac was the strangest man who ever visited my institute. […] During one of Dirac’s visits I asked him what he was doing. He replied that he was trying to take the square-root of a matrix, and I thought to myself what a strange thing for such a brilliant man to be doing. Not long afterwards the proof sheets of his article on the equation arrived, and I saw he had not even told me that he had been trying to take the square root of the unit matrix!"
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University of Cambridge facultyAgnosticsEngineers from EnglandMathematicians from EnglandPhysicists from England
Original Language: English
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Niels Bohr, quoted in Kurt Gottfried, "P.A.M. Dirac and the Discovery of Quantum Mechanics" (2010)
https://en.wikiquote.org/wiki/Paul_Dirac
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