Chinese

		loafer, wastrel	to turn around	cannot be exchanged with gold; invaluable; precious
trad. (浪子回頭金不換)		浪子	回頭	金不換
simp. (浪子回头金不换)		浪子	回头	金不换

Proverb

浪子回頭金不換

1. It is rare when someone who has gone astray turns over a new leaf, so we should accept that person with open arms when the person does reform.