心灵是一个不断进化的过程。
The mind is a constantly evolving process.
过去不是我们抛在身后的东西;它是我们内心携带的东西,塑造着我们的现在和未来。
最优财政政策的设计应旨在减轻时间不一致性和政治经济周期引起的扭曲。
Innovation is not about being the first, it's about being the best.