Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
一部伟大的电影是让观众带着更多问题而不是答案离开的电影。
All the choir of heaven and furniture of earth - in a word， all those bodies which compose the frame of the world - have not any subsistence without a mind.
“记忆是脆弱的东西，容易被时间和情感扭曲。”