"Resilience, happiness and freedom come from knowing what to care about--and most importantly, what not to care about. This is a masterful, philosophical and practical book that will give readers the wisdom to be able to do just that." -- Ryan Holiday, New York Times bestselling author of The Obstacle is the Way and Ego is the Enemy "Mark's ability to dig deep and offer amazing, yet counter-intuitive, insight into the challenges of life makes him one of my favorite writers, and this book is his ...