The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome given the alternatives.

数学的本质在于它的自由。

决策分析的本质是将复杂问题分解为更简单、更易管理的组成部分。

The monument is a fixed point in the changing city.

海洋不仅仅是资源；它是我们的未来。

And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.

释义：观察天下的造化之道，四季周而复始不变，圣人能够体认到这种玄妙的道理并用以教化众生，从而为人民所使用。