"In every book, there is a piece of the author's soul."
在每一本书中，都有作者灵魂的一部分。
When I look at the world I'm pessimistic, but when I look at people I am optimistic.
建筑师必须是一位老师。
You can't let your failures define you. You have to let your failures teach you.
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。
我们不仅仅是在卖商品，我们是在创造一种新的购物体验。