"It is not nuclear violence alone that is the threat to mankind. It is the willingness to kill our fellow human beings – the innocent as well as the noninnocent- for political ends. Unless we are willing to redirect our time, energy, and resources away from perfecting the means of mass destruction of whatever sort and into exploring nonviolent alternatives to war itself, our efforts to combat the threat of nuclear war are likely to be of no avail."
January 1, 1970
https://en.wikiquote.org/wiki/Nuclear_war