There's an old fable about a Cherokee Indian elder who was teaching his grandchildren about life. He said to them, "A fight is going on inside you. It is a terrible fight between two wolves. One wolf represents fear, anger, envy, sorrow, regret, greed, arrogance, self-pity, guilt, resentment, inferiority, lies, false pride, superiority, and ego. The other stands for joy, peace, love, hope, sharing, serenity, humility, kindness, benevolence, friendship, empathy, generosity, truth, compassion, and faith. The same fight going on inside of you is inside every other person, too."
The children thought about it for a minute, and then one child asked his grandfather, "Which wolf will win?"
The old Cherokee elder replied simply, "The one you feed."
Everyone should be quick to listen, slow to speak and slow to become angry, for man's anger does not bring about the righteous life that God desires. Therefore, get rid of all moral filth and the evil that is so prevalent and humbly accept the word planted in you, which can save you. James 1:19-21