Through repeated personal experiences, especially with difficulties or setbacks, one gains profound knowledge and becomes highly skilled or an expert in a particular field; extensive experience makes one an expert.
Era:
Ancient
Frequency:
Synonym:
Story:
During the Spring and Autumn period, two powerful clans, Fan and Zhonghang, within the Jin state were preparing to revolt against Duke Ding of Jin. Many people believed that Duke Ding would be defeated once more.
However, some argued that the Fan clan's uprising was an act of rebellion and would not garner popular support. Moreover, they reasoned that Duke Ding, having suffered numerous defeats, ought to have learned from his past experiences. Just as the proverb 'San Zhe Gong Wei Liang Yi' suggests – one who has mended his broken arm thrice becomes a good doctor – if he properly reflected on his past lessons, he would not fail this time.