The beauty of instrumental variables is that they allow us to see the world in a new light.
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 world breaks everyone, and afterward, many are strong at the broken places."
The best way to learn a new programming language is by writing programs in it.
释义：舌是造成利益或祸害的根本，口是福气祸事之门。
我们对过去了解得越多，就越能理解现在。
成功不在于你赚了多少钱，而在于你对人们生活的影响。
When negotiating， don‘t aim for a bigger piece of the pie； aim to create a bigger pie.
最令人兴奋、最具挑战性和最重要的关系是你与自己的关系。