If you can accept losing you can't win. If you can walk you can run. No one is ever hurt. Hurt is in your mind. Individual commitment to a group effort - that is what makes a team work, a company work, a society work, a civilization work. Mental toughness is many things. It is humility because it behooves all of us to remember that simplicity is the sign of greatness and meekness is the sign of true strength. Mental toughness is spartanism with qualities of sacrifice, self-denial, dedication. It is fearlessness, and it is love. Teamwork is what the Green Bay Packers were all about. They didn't do it for individual glory. They did it because they loved one another.