—— 请按键盘 空白键 开始游戏 ——

The beauty of mathematics only shows itself to more patient followers.
I really think a champion is defined not by their wins but by how they can recover when they fall.
By used books. They have the same words as the new ones. Also libraries.
The present is the past rolled up for action, and the past is the present unrolled for understanding.
如果人们不相信数学是简单的,那只是因为他们没有意识到生活有多么复杂。