Worthy for anyone trying to develop their own code, this is a superb handbook for crafting a purposeful life. Masterfully composed and highly readable, using stories from antiquity to the modern-day realities confronting all leaders, the 'march' of the chapters brings forward valuable gems on each page of the journey. Holiday's themes will remain with you and strengthen you long after you finish reading it. General Jim Mattis, General, U.S. Marines (ret.) and 26th Secretary of Defense