This excerpt from "Unbreakable Mindset: Resilience, Growth and Success" by David Andras introduces the core principles for developing a strong mental attitude, emphasizing that mindset is foundational for achievement. The text outlines a three-part approach covering the science of mindset, including growth versus fixed mindsets and overcoming self-doubt; methods for building mental resilience through techniques like visualization and reframing negative thoughts; and the power of daily habits such as gratitude and cultivating a supportive social circle. The book aims to provide readers with practical strategies and exercises to reprogram their brains for confidence, resilience, and overall success.