Self Improvement What is David Goggins’ 40% rule? May 31, 2026 by Mercier | Leave a Comment David Goggins’ 40% rule is a motivational principle stating that when you feel you’ve reached your limit, you’ve only actually tapped into 40% of your true potential. This concept encourages pushing past perceived barriers to unlock greater mental and physical capabilities. It’s a core tenet of his philosophy for overcoming adversity and achieving peak performance. […] Read more ยป