正方:Offeringrewardstothosepeoplewhohelpyouretriveyourbelongingscanbehelpfultoestablishasocialcustomthatit'smorerewardingtogivethelostpropertytoitsownerthankeepit.WithsuchacustomreceivedbythepublicIbeilevetheChinesesocietywouldbemoreharmonious.
反方:Thisdeedtorewardpeoplewhoreturnyourlostpropertiesmaytosomeextentencouragethesocialmoralityofmoney-worship,materialismandsomeotherbadhabitsofourpeople.
给你两个大方向,然后从这里面进行衍生就行了.