Meditations by Marcus Aurelius is a private philosophical journal written by a Roman emperor to himself. Composed in Greek during the second century A.D., it was never intended for publication. The work consists of brief reflections, reminders, and moral exercises in which Marcus examines anger, mortality, reputation, duty, and the discipline of thought. Rooted in Stoic philosophy, the text emphasizes the distinction between external events and internal judgment, urging composure, rationality, and acceptance of the natural order. Its tone is direct and unadorned, often corrective rather than consoling, as Marcus repeatedly calls himself back to clarity and self-command. Across twelve books, the reader encounters not a systematic treatise but an ongoing effort at inner governance. The enduring power of Meditations lies in this candor: it preserves the private reflections of a ruler striving to live thoughtfully within the limits of human life. This special Millennium Seven edition of Meditations takes up the critical subject of leadership, one that Marcus understood well. This volume’s annotations are leadership-focused, and each book’s leadership lesson immediately follows, with a final summarizing lesson concluding, highlighting the impact of Marcus’s insights across the centuries – up to our own times.