Dirac's dictum

 Hi Jens,
 I haven't looked up the original paper myself, but I found the quote
 cited as P.A.M. Dirac, Proc.R.Soc.London Ser.A 123, 714 (1929). The
 qote is now known as "Dirac's dictum". Appareantly, it is from a
 speech that
 Dirac gave in Cambridge in 1929.
    The paragraph before the "dictum" is equally interesting, because
 Dirac thought that the newly developed theory of relativistic quantum
 mechanics would be of no importance for chemical applications.
 Yours, Georg
 Georg Schreckenbach                      Tel: (Canada)-403-220 8204
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