The effects of policy changes are often more nuanced than simple economic models suggest.

The truth is rarely pure and never simple.

云计算的最大意义在于降低了创新的门槛。

We're here to put a dent in the universe.

人类的存在是宇宙中一种微小而独特的表现，我们应当珍惜并在有限的生命中发挥出色。