世界充满了诗意。空气中弥漫着它的精神；波浪随着它的旋律舞动，在它的光辉中闪耀。

All the other children at my school are stupid. Except I’m not meant to call them stupid, even though this is what they are.

贞节：仅为健康或生育的目的进行房事。爱惜身体，不要损害自己或他人的安宁与名誉。

数学的目标不是解决问题，而是理解问题。