This quote from my favorite play Macbeth, by Shakespeare makes me believe that there is justice in the world. That the wrong deeds with not go unpunished.
Being a victim of mean acts indeed is painful, more so if you are the kind who tries to forgive and gets hurt again and again. This quote gives hope that those cruel acts will not go unpunished.
That blood will have blood.
That those that did wrong will face the consequences sooner or later.