城市是其人民的集体记忆，与记忆一样，它与物体和地方相关联。
The city is the collective memory of its people, and like memory it is associated with objects and places.
天空才是极限。
大脑不是通用计算机，而是为解决特定适应性问题而设计的专门神经回路的集合。