—— 请按键盘 空白键 开始游戏 ——

在数学中,最深刻的思想往往源于最简单的观察。
In mathematics, the most profound ideas often arise from the simplest observations.
每一个超限的一致多重性,即每一个超限集合,必须有一个确定的阿列夫作为其基数。
“拙”可以使人少过错,“缓”可使人免后悔,“退”可远离灾祸,“苟”可使人养福,“静”可使人长寿。
"Literature is the mirror of society, reflecting its beauty and its ugliness, its hopes and its fears."