He says--and here's that Yeatsian word "all" again--he says: When I try to put all into a phrase I say, "Man can embody truth but he cannot know it."

他说，又是他涵盖一切的词：,当我想用一句话概括时，我说，人可以表现他不理解的真理“

耶鲁公开课 - 现代诗歌课程节选

I want to quote Martin Seligman, who talks about precisely this idea: "In the last decade psychologists have become concerned with prevention.

我想引用Martin，Seligman的话，他说过这样一句话：,“在过去的十年,心理学家关心的都是预防的问题。

哈佛公开课 - 幸福课课程节选