The wise seek happiness within their own souls, while fools search outside.

We don't read and write poetry because it's cute. We read and write poetry because we are members of the human race. And the human race is filled with passion. Medicine, law, business, engineering: these are noble pursuits and necessary to sustain life. But poetry, beauty, romance, love...these are what we stay alive for.

数学不仅仅是关于数字、方程、计算或算法，而是关于理解。

我们看事物的方式受到我们所知或所信的影响。

The city's poor are like the roots of a tree: unseen, but essential to its survival.