The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths.

States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.

气候变化不是对森林的未来威胁，而是现在正在运作的电锯。

好的悬疑故事应该让读者一直猜测到最后，但所有线索都必须存在。