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.
I have held many things in my hands, and I have lost them all; but whatever I have placed in God's hands, that I still possess.
预防性医疗的悖论：越需要的人越不重视。
你能做的最好的投资就是投资自己。