The toughest part of the whole damn sport is the X Factor. To me, the X factor is your soul. It's your courage. It's your unique driving force. Suppose for a moment that [you] and I were [running]. Suppose that in every possible way-physical and mental-we were identical. Which one of us would emerge as the champion?
![The toughest part of the whole damn sport is the X Factor. To me, the X factor is your soul. It's your courage. It's your unique driving force. Suppose for a moment that [you] and I were [running]. Suppose that in every](http://cdn.quoteddaily.com/images/brad-alan-lewis/the-toughest-part-of-the-whole-damn-sport-is-the-x-factor-to-me-the-x-factor-is-your-soul.jpg)