 Joseph F. Delany in the Catholic Encyclopedia (1914) defines anger as "the desire of vengeance" and states that a reasonable vengeance and passion is ethical and praiseworthy.Vengeance is sinful when it exceeds its limits in which case it becomes opposed to justice and charity.For example, "vengeance upon one who has not deserved it, or to a greater extent than it has been deserved, or in conflict with the dispositions of law, or from an improper motive" are all sinful.