我尝试从每种情况中学习,无论是积极的还是消极的。
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。
Change is not merely necessary to life—it is life.
A proposition is an assertion that something is or is not the case.