Depression is the inability to construct a future.
The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.
The test of a first-rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.
最优财政政策要求税率随时间平稳变化,仅对政府支出的永久性变化作出反应。
The development of the industry requires the joint promotion of policies, technology, and the market.