The beauty of instrumental variables is that they allow us to see the world in a new light.

计算复杂性的研究告诉我们，有些问题本质上是困难的，无论我们的算法多么聪明。

所以,掌权者的主要任务,就在于聚集天下的贤良之士罢了。

"To be born poor is an accident, but to die poor is a choice."

Editing is about making choices, and those choices define the film.

人生不是任天堂游戏，你没有重来的机会。

Deep learning is a way to get computers to learn from experience.