Who are we? How should we live? Professor James Miller introduces twelve great philosophers who dedicated their lives to answering these questions. From Plato, who risked his reputation to tutor a tyrant, to Seneca, the philosopher of temperance who accumulated one of the greatest fortunes in Rome, to Kant, who privately wrestled with hypochondria while publicly advocating arch-rationality, each had a unique approach to examining life. Here is a fascinating insight into the ideals that have guided us for centuries, and those who have fought passionately to live up to them.