No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn't know it.

世界不必担心我们政府中的军事野心。

Acting is not about being someone different. It's finding the similarity in what is apparently different, then finding myself in there.

下一次绿色革命必须既高效又对环境负责。

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。