革面洗心 [ㄍㄜˊ ㄇㄧㄢˋ ㄒㄧˇ ㄒㄧㄣ; ge2 mian4 xi3 xin1] lit. to renew one's face and wash one's heart (idiom); to repent sincerely and mend one's mistaken ways to turn over a new leaf ◄ ►