The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.

场所是赋予城市意义的原则。

我不怕独处，我怕孤独。

我不是那种会让我的城市失望的人。

二手车市场是信息不对称的经典例子。

A good algorithm is like a sharp knife—it does exactly what it is supposed to do with a minimum of applied effort.

【译文】 子夏说：“每天都学到些新东西，每月都不忘所学会的东西，就算好学了。”