Life is made up of sobs, sniffles, and smiles, with sniffles predominating.

创新是可持续发展的关键。

唯一真正的智慧是自知无知。

If you want to see what this nation is all about, you have to ride the rails. Look outside as you speed through, and you’ll find the true face of America.

井水越是甘甜，就越容易枯竭；树木越是高大，就越容易被砍伐。