The best way to be happy is to make others happy.

"The writer's task is to listen to the whispers of the world and give them a voice."

In international trade, a country should specialize in the production of goods for which it has a comparative advantage, and trade with other nations to maximize overall economic welfare.

译文：在激流中屹立的柱石，力挽狂澜，具有天才，建立伟大的功业，把百姓从苦难中拯救出来，使国家的命运如同磐石般稳固，不是大英雄不能担当这样的重任。