Bob Dylan Poem / Poetry In The Film "Criminal Minds"?

[scars_that_will_not_heal]

What Is The Bob Dylan Poem In The Film: Criminal Minds, that talks about how it is easier to forgive an enemy than a friend? and how on a friend revenge will be given?

I think its a bob dylan poem, but if there is one that sounds right and isnt say anyway, thanks!
That was Unclear Im Not Sure Who The Author of The Poem actually is
lt is easier
to forgive an enemy.
than to forgive a friend.
The man who permits you
to injure him
deserves your vengeance.
He also will receive it.

ThereItIs.

[Jessie D]

i only found it as a qoute by william blake