Ten lessons from economics!

Lesson 1: People face trade-offs (人们面临交替关系)
Lesson 2: The cost of something is what you give up to get it (某种东西的成本是为了得到它而放弃的东西)
Lesson 3: Rational people think at the margin (理性人考虑边际量)
Lesson 4: People response to incentives (人们会对激励做出反应)
Lesson 5: Trade can make everyone bette off (贸易能使每个人状况更好)
Lesson 6: Markets are usually a good way to organise economic activity (市场通常是组织经济活动的一种好办法)
Lesson 7: Governments can sometimes improve market outcomes (政府有时可以改善市场结果)
Lesson 8: A country's standard of living depends on its ability to produce goods and services (一国的生活水平取决于他生产物品和劳务的能力)
Lesson 9: Price rise when the government prints too much money (当政府发行过多货币时，物价上升)
Lesson 10: Society faces a short-term trade-off between inflation and unemployment (社会面临通货膨胀和失业之间的短期交替关系)