The non-interesting psychological answer, some people are better looking and there's more thing-- but the deeper answer is some people are better able to smile.

无聊的心理学答案，有些人更漂亮，有更多-,深刻点的答案，有些人更擅长微笑。

耶鲁公开课 - 心理学导论课程节选

At first glance this seems to be overwhelmingly obvious -to gain more knowledge.

乍看下,答案似乎无疑是明显的,因为要获得更多知识。

耶鲁公开课 - 政治哲学导论课程节选