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Bad Habits in Reasoning.—The usual false conclusions of mankind are these: a thing exists, therefore it has a right to exist. Here there is inference from the ability to live to its suitability; from its suitability to its rightfulness. Then: an opinion brings happiness; therefore it is the true opinion. Its effect is good; therefore it is itself good and true. To the effect is here assigned the predicate beneficent, good, in the sense of the useful, and the cause is then furnished with the same predicate good, but here in the sense of the logically valid. The inversion of the sentences would read thus: an affair cannot be carried through, or maintained, therefore it is wrong; an opinion causes pain or excites, therefore it is false. The free spirit who learns only too often the faultiness of this mode of reasoning, and has to suffer from its consequences, frequently gives way to the temptation to draw the very opposite conclusions, which, in general, are naturally just as false: an affair cannot be carried through, therefore it is good; an opinion is distressing and disturbing, therefore it is true.

Bad Habits in Reasoning.—The usual false conclusions of mankind are these: a thing exists, therefore it has a right to exist. Here there is inference from the ability to live to its suitability; from its suitability to its rightfulness. Then: an opinion brings happiness; therefore it is the true opinion. Its effect is good; therefore it is itself good and true. To the effect is here assigned the predicate beneficent, good, in the sense of the useful, and the cause is then furnished with the same predicate good, but here in the sense of the logically valid. The inversion of the sentences would read thus: an affair cannot be carried through, or maintained, therefore it is wrong; an opinion causes pain or excites, therefore it is false. The free spirit who learns only too often the faultiness of this mode of reasoning, and has to suffer from its consequences, frequently gives way to the temptation to draw the very opposite conclusions, which, in general, are naturally just as false: an affair cannot be carried through, therefore it is good; an opinion is distressing and disturbing, therefore it is true.

Approximate author period: c. 1872 AD · industrial

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Attribution & collection notes
Author or tradition
Friedrich Nietzsche
Attribution: attributed
Country attributed
Not established
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Historical period
Approximate author period: c. 1872 AD · industrial
author lifetime midpoint (1844–1900); not quotation composition date
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Recorded source
Human, All-Too-Human, Part 1 (1909 English edition) (1909 AD)

Part1, complete printed aphorism 30; Helen Zimmern translation; Edinburgh and London: T.N. Foulis,1909

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The voice behind the words.

Friedrich Nietzsche: Photographic portrait, 1882

Author of Human, All-Too-Human, here represented by complete numbered passages in Helen Zimmern’s 1909 and Paul V. Cohn’s 1913 English editions. Catalogue lifetime 1844–1900; historical philosophical arguments and dated viewpoints require context, rather than treating every sentence as general advice.

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