A proof is a way to convince yourself and others that something is true.
不要用很多词语说一点东西,而要在很少的词语中表达很多。
I don’t like to gamble, but if there's one thing I'm willing to bet on, it's myself.
"Every stroke of the brush is a decision that shapes eternity."
地球在所有方向上都是相同的。