任何经济理论的最终检验标准是它是否能改善现实世界的决策。
The best revenge is just moving on and getting over it.
I don't need to be liked by everyone. I need to be true to myself.
解释:将自己的利益给了别人,别人也将会把实惠返回给自己;将自己的怨恨发泄给别人,祸害也将会降临到自己身上。