—— 请按键盘 空白键 开始游戏 ——

Every mathematical problem is a window into a deeper understanding of the world.
The meaning of life differs from man to man, from day to day and from hour to hour.
没有欲念称为圣人,欲念少称为贤人,欲念多是凡人,而纵欲则是狂人。
"The future is about creating a more sustainable world."