To date, nobody has found the quote among Asimov's publishing writings [1]. Similar (but not as succinct) wordings have been identified in earlier sources, but

To date, nobody has found the quote among Asimov's publishing writings [1]. Similar (but not as succinct) wordings have been identified in earlier sources, but nobody has been able to identify the exact origin of the quote. [1] https://quoteinvestigator.com/2015/03/02/eureka-funny/?amp=1 https://quoteinvestigator.com/2015/03/02/eureka-funny/?amp=1