“It's not what you don't know that kills you but what you know that isn't so.”

—  Tom DeMarco

The Deadline (1997), p. 284.

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "It's not what you don't know that kills you but what you know that isn't so." by Tom DeMarco?
Tom DeMarco photo
Tom DeMarco 8
American software engineer, author, and consultant 1940

Related quotes

Mark Twain photo

“It's not what you don't know that kills you, it's what you know for sure that ain't true.”

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.

Blake Schwarzenbach photo

“You don't know what I'm all about / Like killing cops and reading Kerouac”

Blake Schwarzenbach (1967) American singer

"Boxcar"
24 Hour Revenge Therapy (1993)

Suzanne Collins photo
Sherman Alexie photo

“Your children tell you casually years later what it would have killed you with worry to know at the time.”

Mignon McLaughlin (1913–1983) American journalist

The Complete Neurotic's Notebook (1981), Unclassified

Megan Abbott photo
Peter Gabriel photo

“Don't you know that I'm not joking?
Aah, you think you won't, I think you will.
Don't you know that this tongue can kill?
C'mon, c'mon, c'mon, c'mon, c'mon, c'mon.
Lady kiss that frog.”

Peter Gabriel (1950) English singer-songwriter, record producer and humanitarian

Kiss That Frog
Song lyrics, Us (1992)

Bill Maher photo
Carl Sandburg photo
Fred W. Friendly photo

“What we don't know as a nation and as a citizen can kill us.”

Fred W. Friendly (1915–1998) President of CBS News

Open Mind Interview https://www.archive.org/details/openmind_ep498?start=467

Related topics