The purpose of psychotherapy is to set people free.
The beauty of instrumental variables is that they allow us to see the world in a new light.
如果您的过程有10个参数，则可能会错过一些参数。
我不是光明，我是黑暗。
The world is full of stories, but the stories are all one.
In the end, we will remember not the words of our enemies, but the silence of our friends.