Mental Toughness Quotes
Quoted in Colin Jarman The Guinness Dictionary of Sports Quotations (1990).
Vince Lombardi (1998). “Seeing the Win: Why I Believe Vision Coaching is Vital to Winning Business Teams in the 21st Century”
Vince Lombardi (2001). “What It Takes To Be Number #1: Vince Lombardi on Leadership”, p.22, McGraw Hill Professional