Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:

宇宙不仅比我们想象的更奇怪，而且比我们能够想象的还要奇怪。

独立是国家的灵魂。

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。