„One of the better definitions of insanity - doing the exact same thing over and over and expecting the result to be different.“

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„The definition of insanity is doing the same thing over and over and expecting different results.“

— Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955
Variously attributed also to Benjamin Franklin and Mark Twain. The earliest known occurrence, and probable origin, is from a 1981 text from Narcotics Anonymous: "Insanity is repeating the same mistakes and expecting different results." Cf. Rita Mae Brown#Misattributed.

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„The definition of insanity is doing the same thing over and over and expecting different results.“

— Benjamin Franklin American author, printer, political theorist, politician, postmaster, scientist, inventor, civic activist, statesman,... 1706 - 1790
Misattributed to various people, including Albert Einstein and Mark Twain. An early occurrence was used as a teaching reference at University of California, Irvine in social science lectures in the later 1960s. Also found in a 1981 text from Narcotics Anonymous.

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Albert Einstein photo

„Insanity: doing the same thing over and over again and expecting different results. “

— Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955

Rita Mae Brown photo

„Insanity is doing the same thing over and over again but expecting different results.“

— Rita Mae Brown Novelist, poet, screenwriter, activist 1944
Brown did include this quote in her book Sudden Death (Bantam Books, New York, 1983), p. 68, but it appears she was just paraphrasing a quote that had already been written elsewhere. The earliest known appearance of a similar quote is the "approval version" of the Narcotics Anonymous "Basic Text" released in November 1981, which included the quote "Insanity is repeating the same mistakes and expecting different results." A PDF scan of the 1981 approval version can be found here http://www.nauca.us/wp-content/uploads/2015/04/1981-11-Basic-Text-Approval-Form-White.pdf, 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"). More in this article https://quoteinvestigator.com/2017/03/23/same/ on Quote Investigator website.

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Matt Dillon photo

„I like to try different things. A good strong character and a good story are the key things for me when I'm considering a script. But I don't want to do the same kinds of things over and over. I like to challenge myself and do projects that dare to push the limits.“

— Matt Dillon American actor 1964
Dennis King (January 12, 1990) "Matt Dillon - This Era's James Dean - 'Drugstore Cowboy' Star Takes Critics' Award, Speculation About Oscar Nomination in Stride", Tulsa World, p. C1.

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„I hate saying the same thing over and over again.“

—  Homér Ancient Greek epic poet, author of the Iliad and the Odyssey 750
XII. 453–454 (tr. Samuel Butler).

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