"Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it"
About this Quote
The intent is quietly diagnostic. Kettering isn’t dunking on knowledge; he’s warning that knowledge alone is a brittle kind of confidence. The subtext carries a pragmatic ethic: real comprehension shows up as judgment, as the ability to predict consequences, troubleshoot, and adapt. It’s the difference between reading about combustion and hearing, from a small change in pitch, that something is off. That’s why the sentence is built around repetition and contrast: it’s a verbal stress test, pushing the reader to notice how often we substitute accumulation for mastery.
The context matters because Kettering worked during a period obsessed with progress, measurement, and the authority of expertise. His remark anticipates a modern problem: credentialed certainty that collapses when it meets messy reality. In a culture that rewards being “well-informed,” he’s advocating for something rarer and more dangerous: the humility to admit that facts don’t automatically add up to meaning.
Quote Details
| Topic | Knowledge |
|---|---|
| Source | Later attribution: The Functional Fire Company (J. Scott Thompson, 2019) modern compilationISBN: 9781593704551 · ID: UCKUEAAAQBAJ
Evidence: ... Knowing is not understanding . There is a great difference between knowing and understanding : you can know a lot about something and not really understand it . // —Charles F. Kettering , American inventor In TCFD we position each ... Other candidates (1) Future (Charles F. Kettering) compilation34.2% it adds to the understanding of the race it is a place where men are more concerned with the quality of their goals t... |
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Citation Formats
APA Style (7th ed.)
Kettering, Charles F. (2026, January 13). Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it. FixQuotes. https://fixquotes.com/quotes/knowing-is-not-understanding-there-is-a-great-9685/
Chicago Style
Kettering, Charles F. "Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it." FixQuotes. January 13, 2026. https://fixquotes.com/quotes/knowing-is-not-understanding-there-is-a-great-9685/.
MLA Style (9th ed.)
"Knowing is not understanding. There is a great difference between knowing and understanding: you can know a lot about something and not really understand it." FixQuotes, 13 Jan. 2026, https://fixquotes.com/quotes/knowing-is-not-understanding-there-is-a-great-9685/. Accessed 12 Feb. 2026.









