Buthere is the conventional aspect of property, it's a further question what counts as property, how it's defined and what counts as taking property, and that's up to the government.

但财产还有约定俗成的一面，就引出了更进一步的问题,什么才算财产，财产如何定义,且何种行为才算掠夺财产，这是由政府决定的。

耶鲁公开课 - 公正课程节选