In an acquisitive society the form that selfishness predominantly takes is monetary greed.

在一个社会里, 财是私利突出表现形式。

She is an essentially selfish person.

她本质上是个私利人。

Don't be selfish.

不要私利。

She is a selfish person.

她是一个私利人。

It, however, had thought,"With that money you can buy yourself a piece of zwieback," and had kept the farthings, hiding them in the cracks in the floor.

“我可以用它为己买块饼乾。”于是就私留下了钱，藏在了地板缝里。

The strength of altruism lies in the fact that altruistic acts undeniably occur in any society and that moral codes universally advocate altruism or benevolence and condemn selfishness.

毫无疑问,利他主义存在于任何社会,而且道德准也普遍提倡利他主义或为,而谴责私利。这也正是利他主义具有强大生命力原因。