“Great is the guilt of an unnecessary war.”– John Adams Related Quotes “Those wars are unjust which are undertaken without provocation. For only a war waged for revenge or defense can be just.”– Marcus Tullius Cicero “We women are constantly at war with our bodies, it is hard to find amnesty for ourselves.”– Margaret Cho “The world will never have lasting peace so long as men reserve for war the finest human qualities. Peace, no less than war, requires idealism and self-sacrifice and a righteous and dynamic faith.”– John Foster Dulles