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:

最成功的公司是那些将变化视为机遇而非威胁的公司。

把所有的鸡蛋放在一个篮子里是可以的，只要你能控制那个篮子。

唯一真正的错误是我们从中什么也没学到的错误。