The most important thing is to enjoy your life - to be happy - it's all that matters.

出自汉·桓宽《盐铁论·刺议》。专己，指刚愎自用。拒绝忠言直谏的人就会闭塞，一意孤释义：行的人就会孤立。治国安邦的人要认真听取别人的意见，不能拒纳谏言、一意孤行。

"In tennis, like in life, you have to keep moving forward—one point at a time."

孤独是人类的常态。培养它。它如何深入你，让你的灵魂有空间成长。

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.