Politics is the art of the possible, theatre is the art of the impossible.

Ah, but a man's reach should exceed his grasp, or what's a heaven for?

Collaboration across borders and disciplines is the key to unlocking breakthroughs in our field.

国际体系的结构迫使国家以某种方式行事，无论其内部特征如何。

投资可再生能源和更清洁的技术是我们对可持续未来承诺的一部分。