—— 请按键盘 空白键 开始游戏 ——

The child is not a passive recipient of knowledge but an active participant in the learning process.
The value of an idea lies in its practical consequences.
We are all blind, but some of us can see.
目标不仅仅是消除不好的东西,而是追求和体验世界上最好的东西。
聪明好学,不以向地位低下的人请教为耻,所以称他为“文”。