ㄑㄧㄤˊqiángㄓㄨㄥzhōngˋㄧㄡˇyǒuㄑㄧㄤˊqiángㄓㄨㄥzhōngㄕㄡˇshǒu

  1. 諺語)​比喻智慧技能永無止境高手高明三國演義·》:強中自有強中手。」·義俠記·》:強中自有強中手不見快活林殘生。」強中更有強中手」。

however strong you are, there is always someone stronger (idiom)​, there is always sth more to learn, never be satisfied to rest on your laurels, there is no room for complacency