But taken together, they can make a difference and they send a signal that we are serious about changing how government operates,"

VOA: standard.2009.04.20

And I think through philosophy, we can think about those issues and values in a deep way that can help us and others to find the way in which we can make a difference to the world.

通过哲学，我们能够进一步思考一些问题和价值观,它们能够帮助我们和他人,找到一种方式,来改变世界。

普林斯顿公开课 - 人性课程节选

Now the question is "how does it expand" and "why is it so difficult for us to understand, accept, assimilate and live according to the fact that we can make a difference, if we understand that what we need to understand is how change happens.

问题是“它如何扩大“,以及为什么我们难以理解，我们能够做出改变这个事实,并接受，被同化以及据此生活，如果我们能了解我们需要理解的,是改变如何发生。

哈佛公开课 - 幸福课课程节选