—— 请按键盘 空白键 开始游戏 ——

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.
No matter how hard it is, we will never give up.
Dream big and work hard.
我不是名人。我是活动家。
你的时间有限,不要浪费于重复别人的生活。不要让别人的观点淹没了你内心的声音。