The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.

我不害怕电脑，我害怕没有他们。

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:

Do every duty, and expect no reward for it.

所谓仁人，只要能做到自己想成功时先帮别人成功，自己想得到时先帮别人得到，就可以了。推己及人，可算实行仁的方法。

唯一的限制是你自己设定的限制。