The anarchic nature of the international system means that states must rely on self-help to ensure their survival.

毛毛虫眼中的世界末日，我们称之为蝴蝶。

We are all just passing through, leaving only shadows behind.

Never stop learning—the world is always evolving.

自信是关键，但你必须用实力来支撑它。

In healthcare, cutting corners is never an option.