A quote from Christian realist Reinhold Niebuhr (1948): “It is a terrible thing to take human life… [We understand and respect those who absolutely reject violence] We who allow ourselves to become engaged in war need this testimony against us, lest we accept the warfare of the world … Read Moreas normative, lest we become callous to the horror of war, and lest we forget the ambiguity of our own actions and motives and the risk we run of achieving no permanent good from this momentary anarchy in which we are involved.”