The city is the collective memory of its people, and like memory it is associated with objects and places.
不要把事实告诉不值得的人。
我从不回头看,我向前看。
语言中最危险的短语是:“我们一直都是这么做的。”
The freedom of thought is the most precious freedom.
The only limit to our realization of tomorrow is our doubts of today.
可归约性的概念对于理解不同计算问题之间的关系至关重要。