This book gets 5 stars not because every paragraph of every chapter is gripping or particularly interesting, but because the core idea is so fundamentally valuable that the message is worth repeating over and over throughout the book. And that is what it delivers. The message has to be hammered into the way we think of ourselves, our successes and failures, our goals, our relationships… I cannot recommend this book enough. It changed the way I think of challenges and learning and interpersonal dynamics. I look forward to trying to implement it throughout my day to day life.