a definição de insanidade é fazer a mesma coisa repetidamente e esperar resultados diferentes

Esta citação, “A definição de insanidade é fazer a mesma coisa repetidamente e esperar resultados diferentes”, é constantemente atribuída a Albert Einstein, mas não existe registo que o mesmo alguma vez tenha dito isso.

Nem no livro, The Ultimate Quotable Einstein, Edited by Alice Calaprice, Princeton University Press, Princeton, New Jersey (2010), a citação aparece.

“Insanity is repeating the same mistakes and expecting different results.”, na sua versão inglesa tem o seu registo escrito mais antigo segundo a Wikipédia…

From the book Narcotics Anonymous, which is referred to within the Narcotics Anonymous fellowship as “the basic text”. The quotation was not in the “grey book” version of the basic text distributed for editing by the fellowship at large in 1980, but was in the approval version released in November, 1981. A pdf scan of the 1981 approval version can be found here, with the quote appearing on p. 11 (p. 25 of the pdf), at the end of the fourth paragraph (which begins “We have a disease; progressive, incurable and fatal”).
Wikipédia

porta VIII says:

20.02.2020 às 10:13

One way or another we went out and bought our destruction on the time plan! All of us, from the junkie snatching purses to the sweet little old ladies hitting two or three doctors for legal prescriptions, have one thing in common: we seek our destruction a bag at a time, a few pills at a time, or a bottle at a time until we die. This is at least part of the insanity of addiction. The price may seem higher for the addict who prostitutes for a fix than it is for the addict who merely lies to a doctor, but ultimately both pay with their lives. Insanity is repeating the same mistakes and expecting different results.

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