Description: The changes you make at fifty will determine the outcome of your life's biggest match! You spent the first half of your life racing tirelessly toward the top. But now, at fifty, you begin to feel a sense of unease. Should you start preparing for retirement, even though the future beyond it remains unclear? Your confidence wavers as you consider starting a business or re-entering the workforce. Moments of frustration arise in your relationships, including within your own family. And as your health begins to decline, you keenly feel your standing in society shrinking. At this turning point, when life begins to shift in a new direction, how can someone in their fifties prepare for an uncertain future and safeguard their life? The answer lies in The Art of War. To all those in their fifties hoping to navigate life's many perilous passages smoothly—it's time to change! The Art of War is the timeless masterpiece that Napoleon always carried with him on the battlefield, that SoftBank's Masayoshi Son has cited as the secret to his success, and that helped shape the Bill Gates we know today. In this greatest of military treatises from the Spring and Autumn period, read for 2,500 years, Sun Tzu wrote, "Secure victory first, then seek battle" (先勝求戰)—adapt your strategy to the changing situation and the opponent in order to win. Just as a general must constantly adjust strategy according to the enemy's circumstances in war, those in their fifties must respond to life's many variables with adaptability of their own. This kind of change begins with the principle that runs throughout The Art of War: "Know the enemy and know yourself" (知彼知己). What changes have come to me now that I've reached fifty? How will my life change from here on? How must I change myself? The result of truly knowing yourself and your circumstances is what Sun Tzu called "never in danger in a hundred battles" (百戰不殆)—true victory means never being in peril, no matter how many battles you face. When you find yourself thinking about the future at fifty, when you need a plan that won't waver no matter the circumstances, when you want to face the years ahead with a peaceful heart—turn to the wisdom of The Art of War to guide your transformation. This is, in essence, preparation to win at life's decisive turning point. 2,500 Years of Strategy for an Uncertain Life During the turbulent final years of the Spring and Autumn period, when rival states fiercely competed for supremacy and talented individuals constantly shifted allegiances amid ever-changing political circumstances, Sun Tzu wrote The Art of War as a treatise on military strategy—a way to survive safely through chaotic times. The lives of people in their fifties today unfold in remarkably similar circumstances to those Sun Tzu faced 2,500 years ago. This book selects the 39 most essential strategies from The Art of War for those in their fifties who feel a sense of unease about the future. Whether or not you develop a new strategy for the years beyond fifty may well determine the outcome of your life's greatest challenge. First, the strategy of winning without fighting. Sun Tzu said that the best strategy is to bring the enemy fully under your control without ever staining your sword with blood. Directly attacking and crushing an opponent is costly—both in the expense of war itself and in rebuilding the conquered territory afterward. Winning without fighting is the ultimate strategy. One method for achieving this is the "intimidation" tactic used by Han Xin, the great general of the Han dynasty. To bring the state of Qi under his control, Han Xin sent a skilled envoy to declare, "General Han Xin is the legendary commander who defeated the 200,000-strong army of Zhao with only 10,000 soldiers." This made the opponent feel the gap between them so keenly that their will to fight vanished entirely. Terrified by Han Xin's reputation, Qi surrendered immediately. At fifty, rather than engaging in petty, visible competition, it is wiser to build such an overwhelming advantage that others never even think to challenge what is yours. Second, the strategy of always knowing a little more than others. Sun Tzu argued that in order for a general to lead a war according to his own intentions, he must not reveal important military plans to his soldiers. This kind of information asymmetry remains a common practice today for those seeking an advantage. At fifty, you should identify what you know better than others and learn to use that knowledge to your benefit. Third, the strategy of turning weakness into strength. According to Sun Tzu, "momentum" (勢) means shaping circumstances to your own advantage—something we might understand as "flow." If you ride a favorable flow, it's easy to maintain your strength going forward; but if you're caught in an unfavorable flow, it's difficult to turn weakness into strength. That's why the ability to shift momentum is so essential. At fifty, in order to break free from the temptation to settle comfortably into success or passively accept failure...