Hate. It has caused a lot of problems in this world
Hatred does not cease by hatred
Hatred does not cease by hatred, but only by love;
Have a heart that never hardens ~ @DickensMuseum
Have a heart that never hardens, and a temper that never tires, and
Darkness cannot drive out darkness ~ @DrMLKJrWisdom
Darkness cannot drive out darkness: only light can do that.