—— 请按键盘 空白键 开始游戏 ——

Mathematics is the art of asking the right questions and then finding their answers.
The challenges in our lives are there to strengthen our convictions. They are not there to run us over.
译文:纵览历史,凡是贤明的国和家,成功源于勤俭,衰败起于奢华。赏析:节俭不是吝啬,是对钱财的合理利用。不管何时,我们都要有忧患意识,保持俭朴的作风。
过度捕捞的真正代价是用空荡荡的渔网和破碎的社区来衡量的。