无限小的事物在自然中的作用是无限大的。
经济景观是一个由不同等级的中心地组成的系统，每个中心地为特定区域服务。
It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge.
试图阻止知识前进是没有好处的。无知永远不比知识好。
The design of a system should be guided by the principle of least surprise, where the behavior of components is intuitive and predictable.