" When I flew back to Chicago that fateful day in 1954, I had a freshly signed contract with the McDonald brothers in my briefcase. I was a battle-scarred veteran of the business wars, but I was still eager to go into action. I was 52 years old. I had diabetes and incipient arthritis. I had lost my gall bladder and most of my thyroid gland in earlier campaigns. But I was convinced that the best was ahead of me. "

― Ray Kroc , Grinding It Out: The Making of McDonald's