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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:

生活就是選擇，但要選擇得好，你必須知道自己是誰，以及你代表什么。

"The magic of cinema lies in its ability to transform reality."

解釋：好像白色的絲一樣，放到藍色的染缸中，就成為青色；放到紅色的染缸中，就成為赤色。

To be like God， and to follow after Him， is the business and happiness of rational creatures.