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。

The world is so unhappy because it is ignorant of the true self. Man's real nature is happiness. Happiness is inborn in the true self. Man's search for happiness is an unconscious search for his true self.

O amor é a única coisa que cresce quando se gasta.

在数学中，提出问题的艺术必须比解决问题更有价值。

未来属于那些敢于重新构想现在的人。