数学不是关于数字、方程、计算或算法的：它是关于理解的。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
Technology should serve the forest, not exploit it.《Sustainable by Design》
生活中最好的东西是免费的。
可持续性不是一种趋势，而是我们对后代的责任。
Every challenge is an opportunity to learn and grow.
每个句子末端都等待着一个真相。