贞节：仅为健康或生育的目的进行房事。爱惜身体，不要损害自己或他人的安宁与名誉。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The artist's role is to be a bridge between the visible and the invisible, the said and the unsaid.
在讲故事时，你必须无所畏惧，要突破界限，挑战常规。
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。