Es gibt keinen Gott und Dirac ist sein Prophet. (There is no God and Dirac is his Prophet.){A remark made during the Fifth Solvay International Conference (October 1927), after a discussion of the religious views...

Many scientists have tried to make determinism and complementarity the basis of conclusions that seem to me weak and dangerous; for instance, they have used Heisenberg’s uncertainty principle to bolster up human free will, though...

Physicists often quote from T. H. White’s epic novel The Once and Future King, where a society of ants declares, ‘Everything not forbidden is compulsory.’ In other words, if there isn’t a basic principle of...

When {Born and Heisenberg and the Göttingen theoretical physicists} first discovered matrix mechanics they were having, of course, the same kind of trouble that everybody else had in trying to solve problems and to manipulate...

Realizing its fundamental importance in understanding spectral lines, in atomic physics and in the theory of how light and electrons interact, quantum electrodynamics, Pauli and Heisenberg were determined to derive it from quantum theory rather...