It is crux to establish property rights that the social group will recognize unanimously, in accordance with the norm of the innocent obligation.
财产所有权得以确立的核心和关键是社会群体根据无害性义务准则而给予的一致公认。
2
But it is safe to say , for example, that American say "thank you" more often than Chinese say "xiexie" although we may find in each group some people who act in a way different from the norm.