经济模型的价值在于其解释和预测的能力。
Most of us spend too much time on what is urgent and not enough time on what is important.
经济表现的关键在于制度的适应性效率。
The spread of liberal democracy and the integration of the world economy are the two most important trends of the modern era.
如果一件事太难，我们就换别的。还有比这更简单的吗？
"In the middle of difficulty lies opportunity."