I'm very proud to be black, but black is not all I am. That's my cultural historical background, my genetic makeup, but it's not all of who I am nor is it the basis from which I answer every question.

"Randomized experiments are the gold standard for causal inference, but they are not always feasible."

"Innovation is the key to success."

文件就像定期保险：它令人满意，因为几乎没有人订阅它取决于它的利益。

你老师教不了书是因为我。

"To write is to resist the erosion of time."