要理解一个程序，你必须同时成为机器和程序。
To understand a program you must become both the machine and the program.
The stream of consciousness is a stream of adaptations.
卒：同“猝”，指突然事变。这两句大意是：心中没有预先考虑应对事变的方法，就不能应付突然变故。
"You can call me artist, you can call me idol, or any other thing you want. I don’t care, I’m proud of it."
用户需求是产品开发的出发点，也是落脚点。