"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 darkness of annihilation."

-Martin Luther King, Jr.