使用程序证明四色定理不会改变数学-它只是表明该定理是一个世纪的挑战，对数学可能并不重要。
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 probably not important to mathematics.
"The past is a shadow that follows us, but it is also a light that guides us."
矿工的头盔不仅保护头部——它还象征着辛勤工作的尊严。