—— 请按键盘 空白键 开始游戏 ——

The most profound ideas in mathematics often come from asking the simplest questions.
真正的圣贤,决不是愚腐不化。真正的豪杰也绝不是粗鲁疏略。
我不相信运气。我相信努力工作。
"The world is full of obvious things which nobody by any chance ever observes."