—— 请按键盘 空白键 开始游戏 ——

我不害怕跌倒,因为我知道我会再次站起来。
The most beautiful words in the English language aren't "I love you" but "it's benign."
The cowards never started, and the weak died along the way. That leaves us to continue our journey.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.