技术应该赋能工人，而不是取代他们。
Technology should empower workers, not replace them.
"The magic of reading is that it allows us to live a thousand lives."
To understand a program you must become both the machine and the program.
"The challenge is to make the impossible look believable."
I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.
The beauty of instrumental variables is that they allow us to see the world in a new light.