Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that. Hate multiplies hate, violence multiplies violence, and toughness multiplies toughness in a descending spiral of destruction.... The chain reaction of evil— hate begetting hate, wars producing more wars— must be broken, or we shall be plunged into the dark abyss of annihilation. – Martin Luther King Jr.
"An eye for an eye will only make the whole world blind." – Gandhi
"As human beings, our greatness lies not so much in being able to remake the world - that is the myth of the atomic age - as in being able to remake ourselves."