One evening an old priest told about a battle that goes on inside people. He said, "My son, the battle is between two 'wolves' inside us all. 
One is Evil. It is lust, anger, envy, jealousy, sorrow, regret, greed, arrogance, self-pity, guilt, resentment, inferiority, lies, false pride, superiority, and ego.
The other is Good. It is joy, peace, love, hope, serenity, humility, kindness, benevolence, empathy, generosity, truth, compassion and faith."
The man thought about it for a minute and then asked: "Which wolf wins?"
The old priest simply replied, "The one you feed."