Tamara J. Keller

“A man goes to the village to visit the wise man and he says to the wise man, “I feel like there are two dogs inside me. One dog is this positive, loving, kind, and gentle dog and then I have this angry, mean-spirited, and negative dog and they fight all the time. I don’t know which is going to win.” The wise man thinks for a moment and he says, “I know which is going to win. The one you feed the most, so feed the positive dog.”
― Jon Gordon, The Energy Bus: 10 Rules to Fuel Your Life, Work, and Team with Positive Energy