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:

I'm a survivor, I'm not gonna give up, I'm not gonna stop, I'm gonna work harder.

压力造就钻石。

实现不可能的唯一方法就是相信它是可能的。

The most important thing about a technology is how it changes the way we live.

Change starts with acknowledging the past but focusing on the future.