The right to life is a moral principle based on the belief that a human being has the right to live and, in particular, should not be killed by another human being. The concept of a right to life arises in debates on issues of capital punishment, war, abortion, euthanasia, justifiable homicide and, by extension, public health care.
In human history, there has not been a general acceptance of the concept of a right to life that is innate to individuals rather than granted as a privilege by those holding social and political power. The evolution of human rights as a concept took place slowly in multiple areas in many different ways, with the right to life being no exception to this trend, and the past millennia in particular has seen a large set of national and international legal documents (examples being the Magna Carta and the UN Declaration of Human Rights) codifying the general ideal into specifically worded principles.
Opponents of capital punishment argue that it is a violation of the right to life, while its supporters argue that the death penalty is not a violation of the right to life because the right to life should apply with deference to a sense of justice. The opponents believe that capital punishment is the worst violation of human rights, because the right to life is the most important, and capital punishment violates it without necessity and inflicts to the condemned a psychological torture. Human rights activists oppose the death penalty, calling it "cruel, inhuman, and degrading punishment", and Amnesty International considers it to be "the ultimate, irreversible denial of Human Rights".
The United Nations General Assembly has adopted, in 2007, 2008, 2010, 2012 and 2014 non-binding resolutions calling for a global moratorium on executions, with a view to eventual abolition.