沙发冲浪者视自己为一个部落的成员；不像在酒吧里面邂逅的两个人，他们是在利他主义的前提下相遇。

Couch surfers tend to see themselves as part of a tribe; unlike two people hooking up at a bar, they meet under an altruistic premise.

youdao

当代有关利他主义的讨论迅速转向生物进化的解释。

Contemporary discussions of altruism quickly turn to evolutionary explanations.

youdao

但两种理论均未就我们对利他主义的一般理解加以解释。

But neither theory fully accounts for our ordinary understanding of altruism.

youdao

And I want to focus particularly on emotions that generate kind or altruistic behavior.

我想特别讲解能让人产生善意,利他主义行为的情感。

耶鲁公开课 - 心理学导论课程节选

And then we'll move towards altruism, towards non kin.

然后我会讲对非亲人的利他主义。

耶鲁公开课 - 心理学导论课程节选