The most effective policies are often the simplest ones.

Truth, like gold, is to be obtained not by its growth, but by washing away from it all that is not gold.

译文：白云斜斜地挂在蔚蓝的天空上，独自登上高处心中一片怅然。遥想家乡像什么呢?在那杂乱山峰的深处，一片翠绿如烟。

成功不是幸福的关键，幸福才是成功的关键。