The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history. Then have somebody write new books, manufacture a new culture, invent a new history. Before long the nation will begin to forget what it is and what it was. The world around it will forget even faster.

我们都在互相陪伴着回家。

追求知识是一场没有终点的旅程，但每一步前进都是一次胜利。

The beauty of mathematics is that it is one of the few areas of human endeavor where absolute truth can be known.

语言是我们理解世界的唯一工具，但它总是不够用。