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.
Money is a singular thing. It ranks with love as man's greatest source of joy. And with death as his greatest source of anxiety.
我不是女权主义者,但我确实相信女性的力量。
教育不是为生活做准备;教育本身就是生活。