Ask not what your country can do for you --ask what you can do for your country.

I don’t want to be on the cover of Playboy. I want to be on the cover of Rolling Stone.

你的星星无法闪烁是因为我。

Every ton of coal we extract must create maximum value with minimum environmental impact.

世界充满了故事，但这些故事其实是一个。

如果你没有偶尔失败，说明你还没有足够地突破界限。

战争的目的不是要你为你的国家牺牲，而是要让你的敌人为他的国家牺牲。

The most advanced agricultural systems still depend on the most fundamental element: healthy soil.