过去是一个陌生的国度;那里的人做事方式不同。
Psychology must be based on direct experience, not inference.
The beauty of physics lies not just in the answers it provides, but in the mysteries it reveals.
Quality is the lifeline of our products, and we must never compromise on it.
大萧条是二十世纪的决定性宏观经济事件,它引发了对宏观经济理论和政策的根本性重新思考。