The goal of mathematics is to understand the structures that underlie the phenomena we observe.
"每一本书都是一个世界,作者是那个世界的创造者,读者则是那个世界的探索者。"
世界充满了故事,但所有的故事都是一个。
The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome of the process of modernization.
I am not a hero, I am just an ordinary person.
每个采石场都有一个写在岩石层和几代工人中的故事