Tough Mindset Motivation by David Goggins

"David Goggins" has earned himself the reputation of the “toughest man alive” and it’s a reputation well deserved.  He is the former world record holder for the most pull-ups done in 24 hours.  He once ran 205 miles in 39 hours without stopping.  And he’s completed more than 60 ultra-endurance events in his career.  He started all this after telling himself that he was the weakest man alive.