最好的肥料是园丁的影子。

我感激每一次经历，无论好坏，因为它们塑造了我。

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:

关键不在于古代的服饰与古代的语言，况且你只是效法周朝而没有效法夏朝，你所谓的古代还不是真的古代。 

真朋友才会当面中伤你。

The past is never dead. It's not even past.