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:

The most powerful tool for change is knowledge, rigorously pursued and widely shared.

On the road of entrepreneurship, difficulties and challenges are inevitable, but it is these difficulties and challenges that make us stronger.

诗歌也许教会我们培育迷人的幻想：如何一遍又一遍地从自我中重生，并用语言构建一个更美好的世界，一个虚构的世界，使我们能够与生活签订一份永久而全面的和平协议。

一件事情都不能做到有始有终，就不要去操持其他的事情;一物也不明白，就不要追求博闻广记。