Meaning of the word "experience is always the best teacher" in English

What does "experience is always the best teacher" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

experience is always the best teacher

US /ɪkˈspɪriəns ɪz ˈɔlˌweɪz ðə bɛst ˈtitʃər/
UK /ɪkˈspɪəriəns ɪz ˈɔːlweɪz ðə bɛst ˈtiːtʃə/
"experience is always the best teacher" picture

Idiom

the idea that learning from one's own life events and mistakes is more effective than theoretical instruction

Example:
I didn't believe the stove was hot until I touched it; experience is always the best teacher.
He learned how to manage a business by failing first, proving that experience is always the best teacher.