He says current knowledge of life on the ocean floor is especially limited.

VOA: special.2009.01.13

But just how does that kind of knowledge help us deal with the constant ebb and flow of political life?

但那种知识,如何协助,我们面对政治生活中的,恒存起伏？

耶鲁公开课 - 政治哲学导论课程节选

I'm not clear that that kind of knowledge gives a whole lot of value to your life.

我不是很确定,这种知识会给你的生活带来多少价值。

耶鲁公开课 - 死亡课程节选

It mentions a tree of life and the tree of the knowledge of good and evil; then goes on to just focus on the tree of the knowledge of good and evil.

它提到了一棵生命树，一棵分辨善恶的知识树;,接着却重点讲分辨善恶的知识树。

耶鲁公开课 - 旧约导论课程节选