经济学的任务不仅在于解释现象，更在于为社会提供实际的建议和政策。
The task of economics is not only to interpret phenomena, but also to provide practical advice and policies for society.
译文：农民眼泪像雨一样流，又能怎样呢?当官的应该体恤百姓的辛苦啊!
Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.
时间是个滑溜溜的东西：一旦失去控制，它的线索可能会永远从你手中溜走。
A tree's strength lies in its roots, just as a company's strength lies in its values.
非凡的主张需要非凡的证据才能让人信服。
解释：众人的愤怒不可触犯，个人专权的欲望难以成功。