禮尚往來 (lai5 soeng6 wong5 loi4) — courtesy demands reciprocity in Cantonese
laiˏ₅禮soengˍ₆尚wongˏ₅往loiˎ₄來简 礼尚往来
Mandarin Pinyin: li3 shang4 wang3 lai2
Meaning of 禮尚往來
nouncourtesy demands reciprocity
nounpay sb back in his own coin; give as good as one gets; treat sb the way he treats you
nounone good turn deserves another; kindness begets kindness; presents keep friendship warm
noun(saying) 1. Reciprocate; 2. Treated others with kindness as how they will treat you back;/Be kind to others that begets kindness in return