Conflict is the gadfly of thought. It stirs us to observation and memory. It instigates to invention. It shocks us out of sheeplike passivity, and sets us at noting and contriving.

城市是集体创作的艺术品。

不要欺骗自己，认为某事正在工作，而实际上它并没有，否则你会固守一个糟糕的解决方案。