孩子最初爱他们父母，等大一些他们评判父母；然后有些时候，他们原谅父母。
大萧条是二十世纪的决定性宏观经济事件，它引发了对宏观经济理论和政策的根本性重新思考。
In mathematics, the simplest questions often lead to the most profound discoveries.
Liberty cannot be preserved without a general knowledge among the people.
The strongest containers are made not just from steel, but from vision and teamwork.
最可持续的塑料是那些从一开始就不需要被制造的塑料。
When someone tells you something is wrong， they’re usually right. When someone tells you how to fix it， they’re usually wrong.