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Wit & Attitude Quote by Martin Luther King Jr.

"Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity"

About this Quote

King’s sting here is that he aims his harshest words not at cartoon villains but at people who think they’re doing right. “Sincere ignorance” is the poison-pill phrase: sincerity usually buys moral credit, yet King strips it of its halo. You can be earnest, well-meaning, even prayerful, and still function as an instrument of harm. “Conscientious stupidity” tightens the screw. Conscience, the inner compass Christianity and civic life both prize, becomes a delivery system for bad judgment: diligence without discernment, duty without moral imagination.

The line lands with the weight of a minister who spent his life confronting “respectable” obstruction. In the civil rights era, the most dangerous opposition often wasn’t the overt racist who knew he was fighting change; it was the moderate, the bureaucrat, the churchgoer, the civic leader who insisted he was simply keeping order, following procedure, waiting for a “better time.” King’s broader project was to expose how oppression can hide inside politeness, policy, and piety. This sentence compresses that argument into a moral diagnosis.

Its rhetoric is also strategically unsentimental. King isn’t offering comfort; he’s warning about scale. Ignorance plus certainty creates a force multiplier: it votes, sits on juries, writes laws, runs institutions. The subtext is a demand for responsibility beyond intention. If your beliefs cause damage, your sincerity is not a defense; it’s a liability.

Quote Details

TopicWisdom
Source
Unverified source: Strength to Love (Martin Luther King Jr., 1963)ISBN: 9780800614416
Text match: 80.00%   Provider: Cross-Reference
Evidence:
There is nothing more dangerous in all the world than sincere ignorance and conscientious stupidy. (Chapter 4, "Love in Action" (published version noted as p. 25)). Primary-source evidence: The Martin Luther King, Jr. Research and Education Institute (Stanford) hosts MLK’s draft of the sermon/ess...
Other candidates (2)
Martin Luther King Jr. (Martin Luther King Jr.) compilation98.8%
ormed nonconformist nothing in the world is more dangerous than sincere ignorance and conscientious stupidity c
Ethics for the Real World (Ronald Arthur Howard, Clinton D. Korver, 2008) compilation92.3%
... Martin Luther King Jr. are apt: “Nothing in the world is more dangerous than sincere ignorance and conscientious ...
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Citation Formats

APA Style (7th ed.)
Jr., Martin Luther King. (2026, February 15). Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity. FixQuotes. https://fixquotes.com/quotes/nothing-in-the-world-is-more-dangerous-than-33961/

Chicago Style
Jr., Martin Luther King. "Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." FixQuotes. February 15, 2026. https://fixquotes.com/quotes/nothing-in-the-world-is-more-dangerous-than-33961/.

MLA Style (9th ed.)
"Nothing in the world is more dangerous than sincere ignorance and conscientious stupidity." FixQuotes, 15 Feb. 2026, https://fixquotes.com/quotes/nothing-in-the-world-is-more-dangerous-than-33961/. Accessed 19 Feb. 2026.

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MLK Jr. on Sincere Ignorance and Conscientious Stupidity
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About the Author

Martin Luther King Jr.

Martin Luther King Jr. (January 15, 1929 - April 4, 1968) was a Minister from USA.

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