Revenge is a harmful action against a person or group in response to a grievance, be it real or perceived. It is also called payback, retribution, retaliation or vengeance; it may be characterized as a form of justice, an altruistic action which enforces societal or moral justice aside from the legal system. Francis Bacon described it as a kind of "wild justice. Some societies believe that the punishment in revenge should exceed the original injury. For example:
Shakespeare's Hamlet tells a history in which a man avenged the murder of his father by killing his uncle. [2Detractors argue that revenge is simply like in wrong, of the same design as "two wrongs make a right".
Revenge in religion
Many religions condemn revenge, or promote it as eternal punishment. Judaism forbids revenge for small sins such as insults and things like stealing. For large crimes, such as murder, the issue of revenge is more complicated. While some rabbis condemn all revenge, others consider feelings (though not necessarily actions) of revenge permissible in extreme cases such as murder, where the forgiveness of the person offended cannot be attained. Hinduism focuses on dharma and karma, with revenge stemming from attachment to the physical plane. That being said, there are numerous instances of revenge in older scripture, particularly in the saga of Parashurama. Buddhism condemns revenge as stemming from ego and attachment. Some denominations of Christianity command their followers to forgive their enemies. Christian views on death penalty and the use of the military are more subject to interpretation. In Islam, revenge is permissible depending on the situation and cultural mores where it is practiced, but forgiveness is preferable. LaVeyan Satanism promotes "vengeance" as a core tenet.