心灵进化以满足实际需求。

It is a sad fate for a man to die too well known to everybody else and still unknown to himself.

Sustainability isn't an option; it's a necessity for the survival of our industry.

创新是在竞争激烈的行业中保持领先的关键。

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。