little learning is a dangerous thing, a

a little learning is a dangerous thing

proverb Having a precursory or limited amount of learning about something can make one overestimate how well they will be able to do something much larger in scope or scale. Just because she painted her room by herself, now she thinks she can do the entire house—inside and out! A little learning is a dangerous thing, I tell you. Does he seriously think he can represent himself in court just because he went to a few semesters of law school? Hoo boy, a little learning is a dangerous thing. A: "Allie has only driven a few times during the day, but, now, she wants to borrow the car all the time, even at night." B: "Well, a little learning is a dangerous thing."
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

little learning is a dangerous thing, a

Knowing a little may make one mistakenly assume that one knows everything. This expression is a direct quotation from Alexander Pope’s Essay on Criticism (1709), which echoed a sentiment stated in the sixteenth century by the French essayist Montaigne.
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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