The beauty of a mathematical proof lies in its simplicity and inevitability.
The most important part of teaching is to teach what it is to know.
故事就像咒语，它们有魅惑和改变的力量。
所有人类的错误都是不耐烦，过早地中断有条不紊的程序，对表面问题进行明显的围栏。