设计系统最难的部分是决定构建什么。
The hardest part of designing a system is deciding what to build.
"Humor is a way of dealing with the world, a way of coping with the world, and a way of understanding the world."
The stimuli which are allowed in are not connected by just simple one-to-one switches to the outgoing responses.
You have to believe in yourself when no one else does.