"The measure of intelligence is the ability to change"
— Albert Einstein

January 1, 1970

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Added on April 10, 2026
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Albert Einstein
Original Language: English

Sources

Earliest sources found on google books date to 2013 (for example, p. 123 of Learning PHP Design Patterns), earliest version found on twitter is this tweet from January 2009, with the variant "intelligence is the ability to change your mind" posted in this November 2008 tweet, and the variant "intelligence is the ability to adapt to change" attributed to Stephen Hawking in this October 2008 tweet and posted without attribution in this September 2008 tweet. There are also earlier published sources