Get it over with quickly
Fatigue is your greatest enemy says Dempsey. Don’t just assume you can outlast the other person, get it over with:
“True, your opponent also may be getting fatigued; but you can’t be certain about his exact condition unless he’s blowing and staggering. You know for sure only that you’re nearly ‘all in,’ and that he’s still out there swinging at you. Accordingly, the longer he keeps fighting, the less chance you have of winning; but the greater chance you have of being battered, cut up, knocked down, knocked out, or injured.”
For this reason, he strongly advocates you end the fight as quickly as possible, ending his directions with this nugget, “YOU’VE GOT TO KNOCK ‘EM OUT IN FIST-FIGHTS.”
Remember, just because you can, doesn’t mean you should. When in doubt, err on the side of KCCO.