"I think a film like this can make a difference by raising people's awareness of not only the problems that are out there, because a lot of films are gloom and doom, but solutions that are out there.

VOA: special.2009.03.25

But it doesn't have to be through philosophy, I think it can be through a wide range of other studies and other activities that you make a difference.

但不一定仅仅是通过哲学，通过学习其他的学科,通过其他的活动，你也一样可以发挥作用。

普林斯顿公开课 - 人性课程节选

Just want to do things on my own: Can I make a difference?

只想做自己的事，我能否实现改变？

哈佛公开课 - 幸福课课程节选

Here's the difference between normal hemoglobin and sickle hemoglobin, I can make - I can see a chemical difference, I can exploit it, how can I find it?

正常血红蛋白和镰状红细胞贫血的,血红蛋白有不同之处,我能够--我能看出有化学差异,我能去探寻差异,那么我怎么找到它呢

耶鲁公开课 - 生物医学工程探索课程节选