" We agreed that we wanted McDonald’s to be more than just a name used by many different people. We wanted to build a restaurant system that would be known for food of consistently high quality and uniform methods of preparation. Our aim, of course, was to insure repeat business based on the system’s reputation rather than on the quality of a single store or operator. This would require a continuing program of educating and assisting operators and a constant review of their performance. It would also require a full-time program of research and development. I knew in my bones that the key to uniformity would be in our ability to provide techniques of preparation that operators would accept because they were superior to methods they could dream up for themselves. "

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