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.
The world needs pragmatic solutions, not just idealistic visions.
Engineers are the ones who create the future. They’re the people who change the world.
The best books are those that make you feel less alone.
译文：如何能得到千万间宽敞高大的房子，普遍地庇覆天下间贫寒的读书人，让他们开颜欢笑，房子在风雨中也不为所动，安稳得像是山一样?