And incidentally, to know where he's coming from on this, he had a very dramatic and ambitious goal.

我想顺便提一下他为何会去研究儿童,他有着一个宏伟且远大的目标

耶鲁公开课 - 心理学导论课程节选

And that was when I switched my concentration from computer science to philosophy and psychology with a single question: ? how can I become happier?

于是我将研究方向,从计算机科学转向了哲学及心理系,目标只有一个：,如何变得更快乐？

哈佛公开课 - 幸福课课程节选

What is the goal or purpose ? of the study of politics and what is distinctive about Aristotle's approach ? to the study of political things?

研究政治的,目标与目的为何,亚里士多德学习,政治事务方法的,最大不同点为何？

耶鲁公开课 - 政治哲学导论课程节选