工具变量的美妙之处在于它们让我们以新的视角看世界。
The only thing that really matters is, are you a good person?
智能化改造要结合实际,不能盲目跟风。
Writing is a way of giving voice to the voiceless.
"The unexamined life is not worth living."
We must face reality, even if it is cruel.
"Sometimes the greatest act of rebellion is simply to remember."