世界不是一个需要解决的问题;它是一个我们所属的生命体。
"生活就像一本书,每一页都充满了未知的故事。"
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。
Sun don't shine forever, but as long as it's here then we might as well shine together.