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general::
Phrase(s): Experience is the best teacher.
Prov. You will learn more from things that happen to you in real life than you will from hearing about or studying things that happen to other people. • I don’t care how many books you read about how to run a business; experience is the best teacher. • The nurse believed that experience was the best teacher when it came to developing a bedside manner, so she made sure that all her students spent a lot of time with patients.
McGrawhill's American Idioms And Phrasal Verbs