每个数学问题都有一个解决方案；只是需要时间和创造力来找到它。

一个力学问题只有被简化为代数问题时才算解决。

合作是关键——没有任何一个组织能够独自解决世界的环境挑战。

I write to understand, to grasp the reality that escapes me.

成功是一段旅程，而不是终点。不断学习，不断成长。

在任何情况下生存的最佳方法就是为之做好准备。

I am made and remade continually. Different people draw different words from me.

I don't think about age. I think about spirit. I think about how I feel inside.

The world is a very complicated place, and it's not getting any simpler.