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。
I don't believe in heroes, but I believe in people who do heroic things.
The past is not lost; it is encoded within us.
每一次失败都是通往成功的垫脚石;拥抱它并成长。
The most important thing in investing is to have a plan and stick to it.