Quantum Enigma

Physics Encounters Consciousness

Notable Quotes on Quantum Physics

Although he agreed it worked perfectly, Einstein was never happy with quantum theory because it denied a reality of things when they were not being observed.


Albert Einstein


Werner Heisenberg

But Heisenberg went on to insist that these philosophical issues raised by quantum mechanics applied to the big as well as the small.

Albert Einstein"Whether we electrons, light quanta, benzol molecules, or stones, we shall always come up against these two characteristics, the corpuscular and the undular." (Emphasis added.)

Werner Heisenberg

Albert Einstein"Anyone not shocked by quantum mechanics has not yet understood it."

Niels Bohr

Pascual Jordan"Observations not only disturb what is to be measured, they produce it."

Pascual Jordan


Eugene Wigner


Bernard d'Espagnat

Richard Feynman"Nobody understands quantum mechanics."

Richard Feynman

John Bell"Is it not good to know what follows from what, even if it is not necessary FAPP? [FAPP is Bell's disparaging abbreviation of "for all practical purposes."] Suppose for example that quantum mechanics were found to resist precise formulation. Suppose that when formulation beyond FAPP is attempted, we find an unmovable finger obstinately pointing outside the subject, to the mind of the observer, to the Hindu scriptures, to God, or even only Gravitation? Would that not be very, very interesting?"

John Bell


Martin Rees

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