WHAT IS LIFE?: The Life Story of a Man Who Wants to Run at 150

This simple question has inspired philosophers, scientists, leaders, and ordinary people throughout history. In this inspiring book, Wangkyu Yoo explores the meaning of life through learning, challenge, perseverance, relationships, love, health, hope, and personal growth. Drawing from a lifetime of experiences, the author shares practical wisdom about overcoming obstacles, staying curious, embracing change, and continuing to grow regardless of age. The powerful philosophy of "RUN AT 150" serves as a symbol of lifelong learning, resilience, and the belief that human potential does not disappear with age. This book is not merely about living longer. It is about living better, thinking deeper, loving more sincerely, and discovering purpose throughout every stage of life. Whether you are facing challenges, searching for meaning, or simply seeking inspiration, this book offers encouragement to continue moving forward with hope and determination. Life is a journey of growth. Life is a journey of learning. Life is a journey of possibility. What is life? The answer may be found in the way we choose to live each day.