—— 请按键盘 空白键 开始游戏 ——

不要走别人走过的路,去走没人走过的路并留下足迹。
The facts are always friendly, every bit of evidence one can acquire, in any area, leads one that much closer to what is true.
The Erdős discrepancy problem fascinated me because it was so simple to state yet so deep in its implications.