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Leadership Quote by Adlai E. Stevenson

"What a man knows at fifty that he did not know at twenty is for the most part incommunicable"

About this Quote

Stevenson’s line flatters age while quietly warning against the politics of “wisdom” as a sales pitch. By fifty, a person can list more facts than at twenty, but that’s not what he’s talking about. The “for the most part” is the tell: he’s pointing to knowledge that isn’t really information at all, but a sediment of experience - pattern recognition, hard-earned restraint, the ability to smell a bad argument before it finishes its first paragraph. It’s the kind of knowing that arrives through embarrassment, compromise, grief, and repetition, then refuses to convert neatly into advice.

“Incommunicable” does double work. On one level, it’s an almost tender admission of generational distance: older people can’t simply hand younger people the internal guardrails they’ve built. On another, it’s a sly defense against the modern expectation that leaders should always “explain themselves” into credibility. Stevenson, the cerebral midcentury Democrat, operated in a culture that prized public reason but also punished complexity on the stump. The quote suggests a painful asymmetry: mature judgment is real, yet it won’t fit inside a speech, a memo, or a campaign slogan.

There’s also a democratic bite to it. If the most valuable lessons can’t be transmitted, politics can’t be a technocracy of elders lecturing the crowd. It has to make room for younger citizens to learn the slow way, by living through the consequences. Stevenson isn’t romanticizing ignorance; he’s acknowledging that some truths only become legible after you’ve paid for them.

Quote Details

TopicWisdom
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Citation Formats

APA Style (7th ed.)
Stevenson, Adlai E. (2026, January 17). What a man knows at fifty that he did not know at twenty is for the most part incommunicable. FixQuotes. https://fixquotes.com/quotes/what-a-man-knows-at-fifty-that-he-did-not-know-at-41778/

Chicago Style
Stevenson, Adlai E. "What a man knows at fifty that he did not know at twenty is for the most part incommunicable." FixQuotes. January 17, 2026. https://fixquotes.com/quotes/what-a-man-knows-at-fifty-that-he-did-not-know-at-41778/.

MLA Style (9th ed.)
"What a man knows at fifty that he did not know at twenty is for the most part incommunicable." FixQuotes, 17 Jan. 2026, https://fixquotes.com/quotes/what-a-man-knows-at-fifty-that-he-did-not-know-at-41778/. Accessed 13 Feb. 2026.

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About the Author

Adlai E. Stevenson

Adlai E. Stevenson (February 5, 1900 - July 14, 1965) was a Politician from USA.

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