"The most important thing is to stay optimistic."

In the end, the value of a theory is not in its complexity, but in its ability to explain and predict.

法律是在国家权威强制保护下的社会生活条件的总和。

The more you learn, the better you'll perform in the market.

当人们说话时，要完全倾听。大多数人从不倾听。