There is no evidence Einstein ever said or wrote it. The earliest known appearances are in Narcotics Anonymous literature around 1981 and in Rita Mae Brown’s 1983 novel Sudden Death, where a character speaks it.
Where the line actually comes from
Einstein died in 1955. His letters, lectures and interviews are among the most thoroughly catalogued of any twentieth-century figure, and this line appears in none of them. Neither does it appear in the standard collections of his sayings.
What researchers do find is a cluster of sightings in the early 1980s. A version turns up in Narcotics Anonymous material around 1981, where it functions as a piece of practical recovery wisdom about repeating the same behaviour and hoping. Rita Mae Brown’s novel *Sudden Death* (1983) puts a version in a character’s mouth and calls it a definition of insanity.
Between then and now, the quote acquired Einstein. That is the ordinary life cycle of a good anonymous line: unattributed, then attributed to a famous name that makes it sound authoritative, then repeated so often that the name feels like part of the sentence.
What it originally meant
As advice it is sharp and worth keeping. It says the honest test of a strategy is not how reasonable it feels but what it has produced, and that persisting without changing anything is not perseverance — it is a decision to keep the outcome.
Its natural home is behaviour change, which is where it came from: the same argument, the same fifth glass, the same job application template, the same conversation on a loop. Not physics. Nothing in it is scientific, which is part of why the Einstein credit never fit.
How it gets used today — and why that’s off
The first misuse is the attribution itself, and it has a cost: put Einstein’s name on a slide and you have handed anyone in the room an easy way to dismiss your whole point.
The second is aiming it at people who are actually practising. Learning a language, rebuilding fitness, raising a child — these require repeating the same thing many times before results appear. Used carelessly, the line tells patient people to quit.
An honest way to quote it
Drop the false credit: “There’s a saying, often wrongly credited to Einstein, that…” You keep the punch and lose the liability.
Add the distinction it lacks: repetition with no feedback is the problem, not repetition. “Same method, same result, no new information” is the version that survives scrutiny.
People also ask
Did Einstein say insanity is doing the same thing over and over?
No. There is no record of it in his writings, letters or interviews, and it only appears decades after his death.
Who said it first?
The earliest known sources are Narcotics Anonymous literature from around 1981 and Rita Mae Brown’s 1983 novel Sudden Death. No single originator is documented.
Is the idea still useful?
Yes, when used carefully: judge a method by what it produces, and change something if nothing changes.
Stories on the same idea
A house painter with an impossible job teaches the only anti-procrastination method that has ever survived contact with a real week.
A swimming coach with an unremarkable squad and a remarkable record explains what he actually measures.
A restaurant that closed after nine months, a chef who kept one notebook, and the difference between losing and paying tuition.