Civilization will perish without forests.
没有森林,文明将会消亡。
The existing is already a resource.
The first time you share tea with a Balti, you are a stranger. The second time, you are an honored guest. The third time you become family.
In mathematics, the art of proposing a question must be held of higher value than solving it.
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。