" the wolf who wins is the wolf you feed. The evil wolf feeds on anger, guilt, sorrow, lies, and regret. The good wolf needs a diet of love and honesty, spiced up with big spoonfuls of compassion and faith. So if you want the good wolf to win, you’re going to have to starve the other one. "

― Deborah Harkness , The Book of Life (All Souls, #3)