他知道世界是为男人而造的，而男人生来就是为了看这个世界。
He knew that the world was made for men and that men were made to look at it.
Architecture begins where engineering ends.
The essence of mathematics lies in its freedom.
表达人生短暂，我们都是匆匆过客的感慨。
概率论是我们处理不确定性的唯一工具。
The personal is historical, and the historical is personal.
Every day is a new opportunity.
购买旧书，它们的词与新词相同，也可以去图书馆。