To understand a program you must become both the machine and the program.
要理解一个程序，你必须同时成为机器和程序。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
We are all different, but we share the same human spirit. Perhaps it's human nature that we adapt and survive.
People change and forget to tell each other.
世界充满了故事，但这些故事其实是一个。
The dead are never really gone, they live on in the stories we tell about them.