Meaning of the word "a ragged colt may make a good horse" in English

What does "a ragged colt may make a good horse" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a ragged colt may make a good horse

US /ə ˈræɡ.ɪd koʊlt meɪ meɪk ə ɡʊd hɔːrs/
UK /ə ˈræɡ.ɪd kəʊlt meɪ meɪk ə ɡʊd hɔːs/
"a ragged colt may make a good horse" picture

Idiom

a person who is unruly or unpromising in their youth may grow up to be very successful or talented

Example:
He was a troublemaker in school, but look at him now; a ragged colt may make a good horse.
Don't dismiss that intern just because he's clumsy; a ragged colt may make a good horse.