Mathematics is not a spectator sport.
模形式的算术是数论更深层次对称性的反映。
A book is a dream that you hold in your hand.
解释:先前所使用的,现在或许要抛弃。现在要抛弃的,将来或许会用到。
You can be whatever you want to be.
小说是可能的不可能的艺术。