All great leaders, thinkers, artists, athletes, and visionaries share one indelible quality. It enables them to conquer their tempers. To avoid distraction and discover great insights. To achieve happiness and do the right thing. Ryan Holiday calls it stillness -- to be steady while the world spins around you. Drawing on a wide range of history's greatest thinkers, from Confucius to Seneca, Marcus Aurelius to Thich Nhat Hanh, John Stuart Mill to Nietzsche,...