Optimal fiscal policy requires that tax rates be smooth over time, responding only to permanent changes in government spending.
最優(yōu)財政政策要求稅率隨時間平穩(wěn)變化，僅對政府支出的永久性變化作出反應。
Innovation is not the privilege of a few, but an opportunity for everyone.
Darkness cannot drive out darkness； only light can do that.Hate cannot drive out hate； only love can do that.
自動化的未來在于人類智慧與機器精度的結合。
手會記住頭腦忘記的東西。
The study of mind is the study of adaptive behavior.