Which wolf wins?

One evening an old Cherokee told his grandson about an eternal battle.

He said, "My son, the battle is between two wolves inside us all.

"One is Evil -  It is anger, envy, jealousy, sorrow, regret, ignorance, greed, procrastination, arrogance, self-pity, guilt, resentment, inferiority, lies, fear, laziness, false pride, sickness, superiority, and ego."

"The other is Good -  It is joy, peace, love, hope, serenity, humility, knowledge, kindness, self-discipline, benevolence, empathy, right action, courage, generosity, truth, healing, compassion and faith."

The grandson thought about it for a minute and then asked his grandfather: "Which wolf wins?" 

The wise Cherokee replied, "The one you feed."