We are all part of an unbroken chain of life.

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。

"Fairy tales are more than true: not because they tell us that dragons exist, but because they tell us that dragons can be beaten."

I give my whole water in joy,“sings the waterfall,”though little of it is enough for the thirsty.

The past is not lost; it is encoded within us.

译文：只有贤明，品德高尚的人，才能令人信服。

能消除将要发生的事，遇到事情而能做弥补，事情发生后能挽救，这叫做达权，有才干。知道将来的事，做事有始有终，已成的事能知其中的变化，这叫做深思熟虑、有见识。