"I mourn the loss of thousands of precious lives, but I will not rejoice in the death of one, not even an enemy. " - Jessica Dovey "Returning hate for hate multiplies hate, adding deeper darkness to a night already devoid of stars. Darkness cannot drive out darkness: only light can do that. Hate cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that."
- Dr. Martin Luther King, Jr. in Strength to Love
Please note that I have corrected this quotation as the first part was incorrectly attributed to Dr. Martin Luther King, Jr. However, I've added the following quote from him, which expresses a similar sentiment.
"Have we not come to such an impasse in the modern world that we must love our enemies - or else? The chain reaction of evil - hate begetting hate, wars producing more wars - must be broken, or else we shall be plunged into the dark abyss of annihilation."
- Martin Luther King, Jr.