一日為師,終身為父 [ㄧ ㄖˋ ㄨㄟˊ ㄕ , ㄓㄨㄥ ㄕㄣ ㄨㄟˊ ㄈㄨˋ; yi1 ri4 wei2 shi1 , zhong1 shen1 wei2 fu4] lit. teacher for one day, father for ever (idiom) ◄ ►