有时候最难的事情和正确的事情是同一件事。
Causal inference is not just about statistical significance; it's about understanding the mechanisms behind the numbers.
The world is full of people who have dreams and the world is full of people who have ideas, but the world is also full of people who never do anything about them.
"The only way to do great work is to love what you do."
对人进行教育,不管他是哪一类。