“It's not what you don't know that kills you but what you know that isn't so.”
Tom DeMarco (1940) American software engineer, author, and consultant
The Deadline (1997), p. 284.
“It's not what you don't know that kills you, it's what you know for sure that ain't true.”
The quote "It's not what you don't know that kills you, it's what you know for sure that ain't true." is famous quote attributed to Mark Twain (1835–1910), American author and humorist.
Variant: What gets us into trouble is not what we don't know. It's what we know for sure that just ain't so.
Last update Sept. 27, 2023. History
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Mark Twain637
American author and humorist 1835–1910Related quotes
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