Summary:
The book is a memoir that chronicles the author's journey from a troubled childhood through his transformation into a U.S. Armed Forces icon and one of the world's top endurance athletes. It offers motivational lessons and challenges to help readers overcome mental barriers and push past their perceived limits.
Key points:
1. 40% Rule: Goggins' rule suggests we have 60% more effort left when we think we're done. It's about overcoming mental barriers.
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