城市是一个活生生的有机体，不断进化。

The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?

"The key is not to eliminate fear, but to control it."

如果你能够以完全无用的方式度过一个完全无用的下午，那么你已经学会了如何生活。