诗歌的语言是一种探索的语言，而不是交流的语言。
The language of poetry is a language of exploration, not of communication.
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。
Economic history teaches us that change is possible, but it is rarely easy.
El silencio es el origen de todas las palabras.
We are on the verge: Today our program proved Fermat's next-to-last theorem.
