"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。
The only way to learn mathematics is to do mathematics.
Sustainability is not an option; it's a responsibility we owe to future generations.
城市是一个迷宫，每条街道都是记忆线团中的一根线。
诗人的职责是照亮黑暗。