国家本质上是侵略性和扩张主义的，因为它们存在于一个无政府状态的国际体系中，没有更高的权威来约束它们。
States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.
真相如同太阳，永远无法被云层长久遮蔽。
Collaboration between scientists is key to solving complex problems.
有时候最有力的画面是那些为观者的想象留下漫游空间的画面。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."