—— 请按键盘 空白键 开始游戏 ——

The art of doing mathematics consists in finding that special case which contains all the germs of generality.
I'm not afraid of dying, I'm afraid of not trying.
自由不是做我们想做的事情的权力,而是做我们应该做的事情的权利。
The secret to success is to know something nobody else knows.
Survival can be summed up in three words – never give up. That’s the heart of it really. Just keep trying.