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。
一个只能被儿童欣赏的儿童故事,根本就不是一个好的儿童故事。
I'm so high, I can hear heaven.
I believe in the power of storytelling. It's how we make sense of the world.
Quality is not an act, it is a habit.