Provides a brilliant and brave course of action to help navigate life s roughest waters . . . Every veteran of every war should read this invaluable book. Admiral Mike Mullen, 17th chairman of the Joint Chiefs of Staff This book is a gift not only to Greitens s comrades-in-arms, but to readers everywhere. 'Publishers Weekly,' starred review A masterpiece of warrior wisdom that shows how to overcome obstacles with positive action. The best-selling author, Navy SEAL, and humanitarian Eric Greitens offers a self-help book unlike any other. Two years ago, Eric Greitens unexpectedly heard from a former SEAL comrade, a brother-in-arms he hadn t seen in a decade. Zach Walker had been one of the toughest of the tough. But ever since he returned home from war to his young family in a small logging town, he d been struggling. Without a sense of purpose, plagued by PTSD, and masking his pain with heavy drinking, he needed help. Zach and Eric started writing and talking nearly every day, and Eric set down his thoughts on what it takes to build resilience in our lives.Eric s letters drawing on both his own experience and wisdom from ancient and modern thinkers are now gathered and edited into a timeless handbook. They explain how we can build purpose, confront the pain in our lives, practice compassion, develop our vocations, find a mentor, create happiness, follow a role model, think about the story of our lives, and much more.'Resilience 'grapples with real hardship. The lessons are deep, yet practical, and the advice leads to clear solutions. This is a profoundly hopeful book: We all face pain, difficulty, and doubt. But with resilience, we can lead vital, flourishing lives.'