Pat Tillman walked away from a $3.6 million NFL contract to serve his country. Two years later, he was killed in Afghanistan at 27. In this episode, John uses Tillman's story and a powerful Joseph Campbell quote to explore the mindset behind sacrifice, and why it isn't exclusive to soldiers. From mothers to fathers to entrepreneurs, the people who have found something worth giving themselves to are the ones who command the deepest respect.

"A hero is someone who has given his or her life to something bigger than oneself." — Joseph Campbell

This Memorial Day, honor the ones who gave everything. Then ask yourself: what am I doing that's bigger than myself?

Pick up John's book, Optimistic Outlook, on Amazon: https://www.amazon.com/Optimistic-Outlook-Lessons-Important-Muscle/dp/B0G4R5VJH1/