The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
A company's success is measured not just by profits, but by its positive impact on society and the environment.
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。
衡量一个公司成功的真正标准是它在逆境中适应和发展的能力。