Exercise requires us to be brave temptation to quit is the devil's work, we must be brave to fight this daily battle Exercise requires us to be brave. Temptation to quit is the devil’s work. A battle we must fight (or not) every single day. Next Blog By jeff noel Retired Disney Institute Keynote Speaker and Prolific Blogger. Five daily, differently-themed personal blogs (about life's 5 big choices) on five interconnected sites. View all of jeff noel's posts.