—— 请按键盘 空白键 开始游戏 ——

It is the greatest happiness of the greatest number that is the measure of right and wrong.
软件工程的目标是控制复杂性,而不是创造复杂性。
The environment will appear different to different observers depending on what they are prepared to see.
I always tell my students that it's okay to make mistakes, as long as you learn from them.
如果你想理解一个系统,试着改变它。