The essence of learning is the acquisition of meanings.

成长是痛苦的，但没有什么比停滞不前更痛苦。

The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome of the process of modernization.

Cooperation is more important than competition, and ecosystems are more viable than going it alone.

统计学是现代政治家武器库中最重要的武器。

译文：读书学习，每天都要补上自己的不足，半途而废和剪断织布的线有啥区别?(乐羊子妻劝丈夫坚持学习)