Those of us struggling with broken hearts, money woes, or any of the other hardships of everyday life might not think to consult history’s greatest philosophers for help. But according to author Alain de Botton, the advice of Socrates, Montaigne, Nietzsche, and other famous thinkers is just as good as — if not better than — anything you’ll find in the self-help aisle of your local bookstore. He joins Diane to discuss his new book.