—— 请按键盘 空白键 开始游戏 ——

The advancement of mathematics is due to those who are driven not by the desire for application but by the joy of discovery.
如果时空穿梭是可能的,那从未来穿越回来的旅客在哪里呢?
Quality is never an accident; it is always the result of intelligent effort.
The heart is a wild thing, and it doesn’t follow rules.
To stay ahead, you must constantly adapt and evolve.