要解决一个问题，首先必须理解它的本质，然后找到正确的工具来处理它。
To solve a problem, one must first understand its nature and then find the right tools to tackle it.
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:
Every book is a journey, and every journey is a book.
The future of dairy depends on our ability to adapt to changing consumer demands.
I don't think about limitations. I just think about possibilities.
"The only way out is through."
我不是榜样，但如果这能让你晚上睡得更好，随便你怎么称呼我。
数学是为不同事物赋予相同名称的艺术。
我不害怕冒险，因为我知道成长就在那里发生。