ㄐㄧㄣˋㄓㄨㄓㄜˇˋjìnzhūzhěchìㄐㄧㄣˋㄇㄛˋㄓㄜˇㄏㄟjìnmòzhěhēi

  1. 靠近硃砂容易紅色靠近容易黑色比喻環境交友影響 近朱者赤,近墨者黑交友不可不慎」。

proximity to cinnabar makes you red, to pitch makes you black (idiom, from Ouyang Xiu 歐陽修)​; different environments provide different influence., Nurture determines a person's character.