Theorems are the permanent literature of mathematics.

The more we study pain, the more we appreciate its role in survival.

【释义】与其一味行善，不如先停止作恶；与其在犯错后弥补，不如平时谨慎反省，防微杜渐。

The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history.

我写作是为了找出我的想法。