生活是世界上最罕见的事情。大多数人只是存在，仅此而已。

所有人的生活里都有一部历史。

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.

To live is to endure.

数学之美在于它能够将复杂的事物简化。