总统职位需要最大的勤奋和关注。
The office of President is one which requires the utmost diligence and attention.
自由民主的传播和世界经济的整合创造了一个新的全球秩序。
The conjectures of the Langlands program are a challenge to the next generation of mathematicians.
I don't listen to what people say. I just go out there and do my best.
可持续的世界始于可持续的选择。