That there are things in this world not carved out of gray stone. That there s a small place inside of us they can never lock away, and that place is called hope.

You have to believe in the impossible.

保持谦逊，保持渴望，永远不断学习。

The challenge of our time is to create a sustainable energy future.

译文：读书人一定要把圣贤的诗书作为安身立命的根本，为人处世要恪守孝悌，胸怀仁义。赏析：无数圣贤流传下来的思想，读书人应该去学习，因为它是我们做人的根本。古人就提出孝、悌、礼、仪、忠、信、廉、耻为待人处事的准则。

幸福不是现成的东西。它来自你自己的行动。

世界就是一本书，不旅行的人只读了其中一页。