People meet here like ships passing in the night. This is an ocean of faces, not names. It is enough to become familiar with somebody just by seeing them over a long period of time, and nobody asks too many questions so as to avoid friction.
大家萍水相逢，認臉不問名，看人看久了心知肚明就好，用不著追根究底揭破，免得結下恩怨，吃不了兜著走。