Optimal fiscal policy requires that tax rates be smooth over time, responding only to permanent changes in government spending.
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 universe is change; our life is what our thoughts make it.
The truth is rarely pure and never simple.
The voice is an instrument that everyone has.
死者总是与我们同在,我们也总是与他们同在。
自然是最伟大的智者。
I'm a perfectionist, but I've learned to let go.