"It is impossible to underrate human intelligence - beginning with one's own"
About this Quote
The subtext is less misanthropy than prophylaxis. As a historian, Adams watched institutions and publics behave with alarming confidence while making catastrophically shortsighted choices. The line reads like a vaccination against the modern faith that education, progress, or expertise automatically produce wisdom. He’s not arguing that humans can’t be brilliant; he’s arguing that our baseline operating system - pride, habit, groupthink, the hunger for simple stories - makes foolishness endlessly renewable. “Impossible to underrate” is an attack on the comforting belief that there’s a floor to how irrational we can get.
The “beginning with one’s own” clause matters most. It turns a general indictment into a method: start by assuming you’re the easiest person to fool. That reflex is historically literate. Adams lived through the Gilded Age’s boom of technology and bureaucracy, when complexity increased faster than anyone’s ability to grasp consequences. In that world, humility isn’t virtue-signaling; it’s survival gear.
Quote Details
| Topic | Witty One-Liners |
|---|---|
| Source | Help us find the source |
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Citation Formats
APA Style (7th ed.)
Adams, Henry B. (2026, January 15). It is impossible to underrate human intelligence - beginning with one's own. FixQuotes. https://fixquotes.com/quotes/it-is-impossible-to-underrate-human-intelligence-140970/
Chicago Style
Adams, Henry B. "It is impossible to underrate human intelligence - beginning with one's own." FixQuotes. January 15, 2026. https://fixquotes.com/quotes/it-is-impossible-to-underrate-human-intelligence-140970/.
MLA Style (9th ed.)
"It is impossible to underrate human intelligence - beginning with one's own." FixQuotes, 15 Jan. 2026, https://fixquotes.com/quotes/it-is-impossible-to-underrate-human-intelligence-140970/. Accessed 7 Feb. 2026.










