通货膨胀无论何时何地都是一种货币现象。

Every man over forty is responsible for his face.

Leadership in the coal industry today means navigating the delicate balance between economic necessity and environmental responsibility.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

做伟大的事情很困难，但指挥伟大的事情更困难。