很奇怪的是，曾经是好朋友的人可以变成不共戴天的仇人。

It's strange that people who used to be good friends can become bitter enemies.

哪怕是对曾经伤害你很深的人，哪怕是不共戴天的仇人，也应该有勇气去原谅他。尽管短时间你做不到。

We should have the courage to forgive those who ever hurt us very deeply, even who are our absolutely irreconcilable enemies.