沉默是最雄辩的语言。
El silencio es el lenguaje más elocuente.
生活向我们索求的，无非是勇气。
The past is never dead. It's not even past.
Food security begins with resilient farming practices.
数学让我们看到支配周围世界的隐藏结构。
I’m not a businessman, I’m a business, man.
If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."