—— 请按键盘 空白键 开始游戏 ——

Survival can be summed up in three words – never give up. That’s the heart of it really. Just keep trying.
A painting is never finished, only abandoned.
还有什么地牢比自己的心更黑暗!还有什么狱卒比自己更无情!
Theorems are the permanent literature of mathematics.