Have you ever come across a life-changing piece of wisdom that made you wonder: Why didn?t anyone tell me that before? Millions of people have listened to Adam Ashton and Adam Jones on the What You Will Learn podcast, where they spend thousands of hours studying the best thoughts of the wisest people on earth. The question they get asked over and over again is: What?s the best lesson you ever learned? You?d think the answer to this simple question would be simple, but it isn?t?yet! This book will take you on a journey through fact-based teachings from over 100 of the world?s greatest thinkers, covering lessons in personal development, career, business, personal finance, human nature, history, and philosophy. Every lesson will be useful, and any one of them could change your life. Remember, it?s your attitude that determines your height in life, not your ability, occupation, or economics.