The history of war has proved that violence is not just immoral and illegal, but downright impractical. It simply does not work. It cannot solve our problems. It only foments further problems down the road. It leaves a trail of blood, bodies, tears, and resentment. Violence in response to violence can only lead to further violence.
The great lesson of the twentieth century is that war has not resolved our problems and brought us peace. It has only led to greater militarism and more war. This destructive behavior cannot go on forever. At some point, the world will break. This is our future if our present course continues.
— John Dear, Mary of Nazareth, Prophet of Peace