Only two things in this world so that our souls are deeply shocked First, our brilliant stars overhead, First,our hearts loft y moral laws.

Without sacrifice, there is no freedom.

The best way to predict the future is to create it.

入住酒店房间时，先查看紧急出口。这只需要花一分钟时间。

数学是给不同事物起相同名字的艺术。

自由民主的传播和世界经济的整合已经创造了一种情况，即大国不再愿意冒险相互开战。