It is no longer a choice, my friends, between violence and nonviolence. It is either nonviolence or nonexistence. And the alternative to disarmament, the alternative to a greater suspension of nuclear tests, the alternative to strengthening the United Nations and thereby disarming the whole world, may well be a civilization plunged into the abyss of annihilation, and our earthly habitat would be transformed into an inferno that even the mind of Dante could not imagine.

Martin Luther King, Jr. (1929-1968) American clergyman, civil rights leader, social activist, preacher

“Remaining Awake Through a Great Revolution,” National Cathedral, Washington, DC (31 Mar 1968)
    (Source)