你能给予某人最伟大的礼物就是你的时间，因为你正在给予他们你生命中永远不会再回来的一部分。
The greatest gift you can give someone is your time, because you are giving them a portion of your life that you will never get back.
Every story I write starts with a question I can't answer.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
忠诚就是一切。没有它，你一无所有。