你唯一应该努力超越的人就是昨天的自己。
The principle of human dignity is the foundation of all the other principles of the natural law.
International politics is a brutal and unforgiving arena, where states constantly strive to maximize their power and security.
征服恐惧是智慧的开始。
赚钱的唯一方法是承担风险，但关键是要承担经过计算的风险。
To write is to leave a trace, to make a mark on the world.