अहिंसा परमं मित्रम् अहिंसा परमं सुखम्। अहिंसा परमं सत्यम् अहिंसा परमं श्रुतम्॥ The above passage from Mahabharata emphasises the cardinal importance of Ahimsa in Hinduism, and literally means: Ahimsa is the highest Dharma, Ahimsa is the highest self-control, Ahimsa is the greatest gift, Ahimsa is the best practice, Ahimsa is the highest sacrifice, Ahimsa is the finest strength, Ahimsa is the greatest friend, Ahimsa is the greatest happiness, Ahimsa is the highest truth, and Ahimsa is the greatest teaching.Ahimsa: To do no harm Subramuniyaswami, What is Hinduism?, Chapter 45, Pages 359–361 Some other examples where the phrase Ahimsa Paramo Dharma are discussed include Adi Parva, Vana Parva and Anushasana Parva. The Bhagavad Gita, among other things, discusses the doubts and questions about appropriate response when one faces systematic violence or war. These verses develop the concepts of lawful violence in self-defence and the theories of just war. However, there is no consensus on this interpretation. Gandhi, for example, considers this debate about non-violence and lawful violence as a mere metaphor for the internal war within each human being, when he or she faces moral questions. Self-defence, criminal law, and war The classical texts of Hinduism devote numerous chapters discussing what people who practice the virtue of Ahimsa, can and must do when they are faced with war, violent threat or need to sentence someone convicted of a crime. These discussions have led to theories of just war, theories of reasonable self-defence and theories of proportionate punishment. Arthashastra discusses, among other things, why and what constitutes proportionate response and punishment. War The precepts of Ahimsa under Hinduism require that war must be avoided, with sincere and truthful dialogue. Force must be the last resort. If war becomes necessary, its cause must be just, its purpose virtuous, its objective to restrain the wicked, its aim peace, its method lawful. War can only be started and stopped by a legitimate authority. Weapons used must be proportionate to the opponent and the aim of war, not indiscriminate tools of destruction. All strategies and weapons used in the war must be to defeat the opponent, not designed to cause misery to the opponent; for example, use of arrows is allowed, but use of arrows smeared with painful poison is not allowed. Warriors must use judgment in the battlefield. Cruelty to the opponent during war is forbidden. Wounded, unarmed opponent warriors must not be attacked or