"When that bad boy threw stones at you," said the mother, "why didn't you call me instead of throwing stones back at him?"
"Why?" asked the boy. "You couldn't hit the side of a barn."
Too many throw stones instead of turning the other cheek. They lash back, they don't love back. You can't get ahead of anyone if you're trying to get even with him. The only people you should try to get even with are those who have helped you.
Has someone hurt you? Slight it, forget it and do good in return.
Our Lord said, "Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you."