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。
真正的挑战是创造能与人们情感共鸣的空间。
I have learned to seek my happiness by limiting my desires, rather than in attempting to satisfy them.
The human being is a sun; and the senses are his planets.