I stumbled across this quote and liked it. After I did some research, I found out that it was only and excerpt and paraphrased. I still like this excerpt version as it's not too long and goes straight to the point faster. I've also included the full version below it.
===.
The Ultimate Weakness Of Violence
~ by Dr Martin Luther King
(an excerpt)
The ultimate weakness of violence is that... Instead of diminishing evil, it multiplies it. Through violence you may murder the hater, but you do not murder hate. In fact, violence merely increases hate. Darkness cannot drive out darkness: only light can do that. Hate cannot drive out hate: only love can do that.
===.
The Ultimate Weakness Of Violence
~ by Dr Martin Luther King
(full version)
===.