—— 请按键盘 空白键 开始游戏 ——

The act of writing is an act of optimism.
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
模型检查的挑战不仅在于发现错误,还在于理解它们为何发生。
Every story has a beginning, a middle, and an end, but not necessarily in that order.