altruistic

The avianize of altruistic behavior depends on their high cost and low income.

摘要行弱化在于行的高成本低收益。

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,主存在于任何社会,而且道德准也普遍提倡主或善良行,而谴责自私自。这也正是主具有强大生命力的原因。