—— 请按键盘 空白键 开始游戏 ——

The past is hidden somewhere outside the realm, beyond the reach of intellect, in some material object (in the sensation which that material object will give us) which we do not suspect.
数学的本质不是把简单的事情复杂化,而是把复杂的事情简单化。
I must study politics and war, tapestry and porcelain.