模型的目的是足够简单以便理解和使用，但又足够复杂以捕捉系统的基本特征。

"The dead are the only ones who truly know us."

The speech we hear is an indication of that which we don't hear. It is a necessary avoidance, a violent, sly, anguished or mocking smokescreen which keeps the other in its place.

创新是经济繁荣的核心。

最好的写作会为读者留出空间，让他们找到自己的意义。

I don't need a reason to be kind.