Karl Popper Quotes
But it is certainly not possible to insist on one hand that the formalism is complete and to insist on the other hand that its application to 'the actual' actually demands a step which cannot be derived from it.
Citations
Popper, Karl. The Logic of Scientific Discovery. Hutchinson & Co., 1959, p. 77.
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Sir Karl Raimund Popper CH FBA FRS was an Austrian-British philosopher, academic and social commentator.