"As certain as she is sometimes and as absolutely gung-ho and young and courageous and brave, she is also willing to take a step back and go 'okay,I'm going to reconsider my options and how I'm treating everybody' because she acknowledges that she's being a little bit selfish.

VOA: standard.2010.07.07

How can I talk about or act in my life, ? pursuing my happiness isn't that selfish?

我谈论经营自己的生活，追求自己的快乐，这怎么不是自私？

哈佛公开课 - 幸福课课程节选

I wish that that weren't the case, but people are selfish.

我不希望这种现象存在，但人都是自私的。

不平等的赞助入学 - SpeakingMax英语口语达人

If you're relentlessly selfish and calculating you would say, the chances that I decide the election are zero, so I'm just not going to bother.

如果你唯利是图,精于算计,你会说,我的投票能够决定选举的概率是零,所以我根本无需投票

耶鲁公开课 - 金融市场课程节选

You know, one of the things that I say and only half ingest, is that I know of no more selfish act and a benevolent act.

我说到的一件事，只说了一半意思，即最自私的所为就是善举。

哈佛公开课 - 幸福课课程节选

What this often--What this can be viewed as, as an extended version of selfish gene theory, which is that to the extent you're interconnected with other people you care about them more for purely selfish reasons.

其实我们可以把这个观点视为，自私基因理论的延伸，也就是说根据你和别人,互相联系的程度,你对他人的关心更多是因为自私的原因。

耶鲁公开课 - 心理学导论课程节选

That' s a selfish thing.

那是一件自私的事。

哈佛公开课 - 幸福课课程节选

Hence, selfish genes will lead to altruistic animals because, to the extent that evolution operates at the level of the genes, there's no hard and fast distinction between your own body and someone else's body.

所以，自私基因会导致利他行为，从这个意义上说,进化在基因层面进行，你自己的身体和别人的身体,没有严格差别。

耶鲁公开课 - 心理学导论课程节选