Scientists find inspiration in myriad ways: Alexander Fleming’s moldy petri dish led him to discover penicillin; Isaac Newton’s observation of an apple falling from a tree led him to write the laws of motion and the universal law of gravitation. For University of Arizona Health SciencesComprehensive Center for Pain & Addiction member Tally Largent-Milnes, PhD, a beloved children’s book sent her on a quest to hear the invisible symphony being played inside the brain.