—— 请按键盘 空白键 开始游戏 ——

The essence of mathematics lies in its freedom.
And, after all, what is a fashion? From the artistic point of view, it is usually a form of ugliness so intolerable that we have to alter it every six months.
你经历的越多,你学到的就越多。
"The most powerful tool we have as leaders is our own example."