—— 请按键盘 空白键 开始游戏 ——

Theorems are not discovered by accident.
你必须熬过一些糟糕的日子才能赢得人生中最美好的日子
译文:做事要三思而后行,否则就会后悔,人要善于忍耐才不会有忧患。赏析:不管是说话还是做事,我们都要三思,不经过大脑的话和事只会伤害别人。忍一时风平浪静,事事都要争个输赢,只会两败俱伤。
The meaning of a word is its use in the language.
The boundaries of our knowledge are the frontiers of our curiosity.