The most important skill for an economist is the ability to think clearly about trade-offs.

最好的建筑是可持续的。

要养活世界，我们必须先了解它。

最好的性能改进是从非工作状态到工作状态的转变。

However difficult life may seem, there is always something you can do and succeed at.

Excellence is not an act, but a habit.