修仙之路漫长而艰辛，但每一步都让你更接近天道。

把一个简单的想法认真对待。

世界是一个舞台，但剧本选角很糟糕。

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.