生活的全部就是放手，但最痛苦的是没有花一点时间说再见。

True friends are not those who have endless topics to talk about, but those who can stay together without feeling awkward even if they don't speak.

翻译：犯错不可怕，勇敢改正、迅速向善才可贵，及时止损比固执己见更能减少损失。

The arithmetic of L-functions is a key to unlocking the secrets of number theory.

每一个巨大而深刻的困难本身都包含着它的解决方案。它迫使我们改变思维以找到解决方案。