60% sureLots of sources credit Samuel Johnson 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
Recorded conversation of 14 July 1763 in Boswell's Life of Samuel Johnson (1791). Boswell's contemporaneous record is a real named work, but not a work BY Johnson — testimony class, held at likely per the house Bohr precedent.
Work
Boswell's Life of Samuel Johnson
Occasion
1763 · conversation recorded by James Boswell
Sources checked
en.wikiquote.orgChecked using claude-fable-5, 21 August 2026Sourced section: Boswell's Life of Johnson, conversation of 14 July 1763
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