—— 请按键盘 空白键 开始游戏 ——

As Will Rogers would have said, "There is no such thing as a free variable."
Actions are right in proportion as they tend to promote happiness; wrong as they tend to produce the reverse of happiness.
最好的科学往往来自于提出最简单的问题。
Collaboration and communication are as important as technical skills in the field of computer science.