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:

Technology will continue to revolutionize how we extract and utilize natural gas.

【译文】 孔子说：“君子心怀仁德，小人心怀家乡；君子心怀法制，小人心怀实利。”

我对装饰变成其他东西的那一刻很感兴趣。

我不是为了记录而打球，我打球是因为我爱这项运动。