If time travel is possible, where are the tourists from the future?

英语中最美的词是"我告诉过你"。

改变的秘诀在于集中所有精力，不是与过去斗争，而是建设未来。

The deterioration of every government begins with the decay of the principles on which it was founded.

我总是尊重对手，因为他们让我变得更好。

The more you're actively and practically engaged, the more successful you will feel.

Food security is the cornerstone of national security.

最好的故事是那些为读者想象力留出空间的故事。