The challenge of our time is to build an economy that works for everyone, not just the privileged few.
我们时代的挑战是建立一个为所有人服务的经济，而不仅仅是少数特权阶层。
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。
April is the cruelest month, breeding lilacs out of the dead land, mixing memory and desire, stirring dull roots with spring rain.
"Every brushstroke should carry the weight of thought."
当科学开始研究非物质现象的那一天，它将在十年内取得比过去所有世纪更多的进步。
I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day.