in The Quantum Theory and Reality, by [Bernard d'Espagnat, Scientific American, November, 1979, 158] http://www.sciam.com/media/pdf/197911_0158.pdf
“While many questions about quantum mechanics are still not fully resolved, there is no point in introducing needless mystification where in fact no problem exists.”
Source: The Quark and the Jaguar (1994), Ch. 12 : Quantum Mechanics and Flapdoodle, p. 167.
Context: While many questions about quantum mechanics are still not fully resolved, there is no point in introducing needless mystification where in fact no problem exists. Yet a great deal of recent writing about quantum mechanics has done just that.
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Murray Gell-Mann 10
American physicist 1929–2019Related quotes

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"Introduction: John Bell and the second quantum revolution" (2004)

Steven Weinberg, in " Science’s Path From Myth to Multiverse https://www.quantamagazine.org/20150317-sciences-path-from-myth-to-multiverse/" by Dan Falk (March 17, 2015)
as quoted by John Hogan, in Quantum Philosophy, Scientific American (July 1992)

Preface to the First American Printing (1950) Note: see Paul Dirac, The Principles of Quantum Mechanics (1947)
Space—Time—Matter (1952)

W. E. Lamb, Super classical quantum mechanics: the best interpretation of non relativistic quantum mechanics, Am. J. Phys. 69, 413-422 (2001).
in his early Quantum Mechanics paper On King's Classical Theory of Radiation, Proceedings of the National Academy of Sciences, March 1, 1927, vol. 13, no.3, p. 97-100.