自然实验可以为经济问题提供有价值的见解。

"The role of business is to produce goods and services that people value more highly than their cost, and to do so while consuming as few resources as possible."

伟大的事物需要时间。

The Internet is the first thing that humanity has built that humanity doesn't understand, the largest experiment in anarchy that we have ever had.

民主的未来取决于民主社会自我改革和适应新挑战的能力。