To solve a problem, one must first understand its nature and then find the right tools to tackle it.

Energy independence is not just a goal; it's a necessity for national security.

表演的挑战不是展示，而是揭示。

History is a nightmare from which I am trying to awake.

每个故事都有一个开始、中间和结尾，但不一定是这个顺序。

解释：不注意天时，财富就不能增长；不注意地利，粮食就不会充足。