—— 请按键盘 空白键 开始游戏 ——

The hardest part of any challenge is taking the first step.
Theorems are the milestones of mathematics.
The real opposition is that between the ego-bound man, whose existence is structured by the principle of having, and the free man, whose existence is structured by the principle of being.
作为一个有创造力的人,最危险的想法就是认为自己知道自己在做什么。