But it's all legal and you could make an argument that it's in a general good of our society that people do that.

但是，这些都合法并且你可以驳斥我说,人们这样做，在大体上是,对社会有好处的。

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It will help, rather than all trying to do it individually.

这样做是有好处的,比每个人都单打独斗要强

耶鲁公开课 - 金融市场课程节选