The rules of survival never change, whether you’re in a desert or in an downtown street: you need to be hydrated, you need food, and you need shelter.

The poet's pen is mightier than the warrior's sword.

沉默是被压迫者的语言。

圆的周长大于任何内接等边多边形的周长，小于任何外切多边形的周长。

如果你不拥抱新事物，你就无法生存。