有时候生活会用砖头打你的头，但不要失去信心。

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.

The best time to plant a tree was 20 years ago; the second-best time is now.

过去从未死去，它甚至还没有过去。

想象力不仅是人类独有的能力，可以设想不存在的事物，因此是所有发明和创新的源泉。在其最具变革性和启示性的能力中，它是一种力量，使我们能够同情那些我们从未分享过经历的人。