The beauty of instrumental variables is that they allow us to see the world in a new light.
在没有其他信息的情况下,参数的最佳估计是其样本值。
译文:命运中有的终究会有,命运里没有的就不要强求。赏析:面对错综复杂的社会,人应该积极进取,努力向前,但无奈的现实,总是不如意,有时我们也应放低姿态,学会自我安慰。
"We are all broken, that's how the light gets in."
I've always been interested in the idea of the outsider, the person who doesn't quite fit into the mainstream.