“If A is success in life, then A = x + y + z. Work is x, play is y and z is keeping your mouth shut.”

— Albert Einstein

Said to Samuel J Woolf, Berlin, Summer 1929. Cited with additional notes in The Ultimate Quotable Einstein by Alice Calaprice and Freeman Dyson, Princeton UP (2010) p 230
1920s
Variant: If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut.

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Albert Einstein702

German-born physicist and founder of the theory of relativi… 1879–1955

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