I have never met a man so ignorant that I could not learn something…

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I have never met a man so ignorant that I could not learn something… — Galileo Galilei · Smartyfair

I have never met a man so ignorant that I could not learn something from him.

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In plain words

There is something to learn from absolutely everyone.

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How sure this is: 45% sureLots of sources credit Galileo Galilei with this, and they agree with each other. The book or the speech it first came from hasn't turned up yet.
What turned up: Widely attributed to Galileo; only sourcing found is Will Durant's The Story of Civilization (1935), a posthumous secondary work, not a primary Galileo source.
Work: quoted in Will Durant's The Story of Civilization
Occasion: 1935 · attributed reflection on humility and learning from everyone
Sources checked: en.wikiquote.orgChecked using claude-sonnet-5, 21 August 2026Attributed section, cited only to Will Durant, The Story of Civilization (1935)