我已经不再年轻，不再知道一切。

The security dilemma is a fundamental feature of international politics, as states' efforts to increase their own security often decrease the security of others.

The novel is the one bright book of life. Books are not life. They are only tremulations on the ether. But the novel is the one bright book of life.

如果你不经历艰难时刻，你就无法到达美好的时光。

每个词都是一个世界，每行诗都是一个宇宙。

真相很少是纯粹的，也从来不是简单的。