—— 请按键盘 空白键 开始游戏 ——

世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。
Innovation is not just about creating something new; it's about improving what already exists.
The solution of a problem appears suddenly and is not approached by a gradual, step-by-step procedure.