Albert Einstein? Al-Anon? Narcotics Anonymous? Max Nordau? George Bernard Shaw? Samuel Beckett? George A. Kelly? Rita Mae Brown? John Larroquette? Jessie Potter? Werner Erhard?

Question for Quote Investigator: It’s foolish to repeat ineffective actions. One popular formulation presents this point harshly:
The definition of insanity is doing the same thing over and over again and expecting a different result.
These words are usually credited to the acclaimed genius Albert Einstein. What do you think?
Reply from Quote Investigator: There is no substantive evidence that Einstein wrote or spoke the statement above. It is listed within a section called “Misattributed to Einstein” in the comprehensive reference “The Ultimate Quotable Einstein” from Princeton University Press.1
The earliest strong match known to QI appeared in October 1981 within a Knoxville, Tennessee newspaper article describing a meeting of Al-Anon, an organization designed to help the families of alcoholics. The journalist described the “Twelve Steps” of Al-Anon which are based on similar steps employed in Alcoholics Anonymous. The newspaper began with these two steps:2
Step 1: We admitted we were powerless over alcohol – that our lives had become unmanageable.
Step 2: Came to believe that a Power greater than ourselves could restore us to sanity
One of the attendees at the meeting hesitated to accept the accuracy of second step. Emphasis added to excerpts by QI:
Not all the women are willing to admit they needed to be “restored to sanity.” In fact, one of them adamantly maintains that she had never reached a point of insanity. But another remarks, “Insanity is doing the same thing over and over again and expecting different results.”
The second earliest strong match known to QI appeared in a pamphlet printed by the Narcotics Anonymous organization in November 1981:3
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.
QI acquired a PDF of the document with the quotation above on the website amonymifoundation.org back in February 2011. The document stated that it was printed in November 1981, and it had a 1981 copyright notice. The website was subsequently reorganized, but the document remains available via the Internet Archive Wayback Machine database.
Below are additional selected citations in chronological order.
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