So, fuel economy and environmental conservancy make a lot of sense if you care about such things, of course.

所以，油价和环境保护,是很有意义的,如果你关心这样的事，当然会更好。

麻省理工公开课 - 固态化学导论课程节选

What does it mean to do anything in a world in which God seems to be so entirely in control of all of our doings and of our actions?"

在一个上帝似乎控制了,我们所有的活动的世界里,我们做那些事又有什么意义？“

耶鲁公开课 - 弥尔顿课程节选

Let's help them identify something meaningful in their life, their passion.

帮助人们找到对自己人生有意义的事，和他们的热情所在。

哈佛公开课 - 幸福课课程节选