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Kunstgriff 33»Das mag in der Theorie richtig sein; in der Praxis ist es falsch.« Durch dieses Sophisma gibt man die Gründe zu und leugnet doch die Folgen; im Widerspruch mit der Regel a ratione ad rationatum valet consequentia. Jene Behauptung setzt eine Unmöglichkeit: was in der Theorie richtig ist, muß auch in der Praxis zutreffen; trifft es nicht zu, so liegt ein Fehler in der Theorie, irgend etwas ist übersehn und nicht in Anschlag gebracht worden, folglich ist's auch in der Theorie falsch. |
Stratagem XXXIII"That's all very well in theory, but it won't do in practice." In this sophism you admit the premisses but deny the conclusion, in contradiction with a well-known rule of logic. The assertion is based upon an impossibility: what is right in theory must work in practice; and if it does not, there is a mistake in the theory; something has been overlooked and not allowed for; and, consequently, what is wrong in practice is wrong in theory too. |
Arthur Schopenhauer: |
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Die Kunst, Recht zu behalten | The Art Of Controversy |
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