Karma

Mahatma Gandhi said, "An eye for an eye makes the whole world blind." 
As we practice our culture of violence it is ironic to note how blind we have become to this truth.
Yet we understand when we hear "what goes around comes around" or "as you sow so shall you reap." Does not the Bible also say vengeance belongs to the Lord?

So instead of an eye for an eye, it is better to remember the words of Christ: "Do unto to others as you would have them do unto you."