"Once started, religious strife has a tendency to go on and on - to become permanent feuds. Today we see such intractable inter-religious wars in Northern Ireland, between Jews and Muslims and Christians in Palestine, Hindus and Muslims in South Asia and in many other places. Attempts to bring about peace have failed again and again. Always the extremist elements invoking past injustices, imagined or real, will succeed in torpedoing the peace efforts and bringing about another bout of hostility."