As a little girl, I would set the lunch table extra slowly so that I could overhear the philosophic conversations between my father, Henry M. Rosenthal, and Léo Bronstein, his closest friend. Understanding not a word, I still liked that music better than any other. For me, it was like having died and gone to heaven. Abigail L. Rosenthal is Professor Emerita at Brooklyn College of The City University of New York. She is the author of Confessions of A Young Philosopher (forthcoming), which...