《大創業家》講述麥當勞之父Ray Kroc的創業故事。Ray每日都重複諗著這一段話:
Nothing in this world can take the place of persistence. Talent will not: nothing is more common than unsuccessful men with talent. Genius will not; unrewarded genius is almost a proverb. Education will not: the world is full of educated derelicts. Persistence and determination alone are omnipotent.