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.

数学中最令人兴奋的时刻是当你发现两个看似不相关的领域有着深刻的联系。

In business, if you're not moving forward, you're falling behind.

世界是一本书，不旅行的人只读了一页。