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。

语言是存在的家。人在其中栖居。

我对某个人一旦没有了好感，就永远没有好感。

Many leaders of big organizations, I think, don’t believe that change is possible. But if you look at history, things do change, and if your business is static, you’re likely to have issues.