A Cherokee elder sitting with his grandchildren told them, "In every life there is a terrible fight - a fight between two wolves. One is evil: he is fear, anger, envy, greed, arrogance, self-pity, resentment, and deceit.  The other is good: joy, serenity, humility, confidence, generosity, truth, gentleness, and compassion."
A child asked, "Grandfather, which wolf will win?"
The elder looked him in the eye. "The one you feed."