After winning the Nobel prize, Max Planck went around Germany giving talks. His chauffeur heard the talk so many times that he had it by heart, and so one time, he asked Max Planck if he could give the address. Planck agreed, they changed places, and the lecture came off famously. But then came the Q&A, with the very first question being one that the chauffeur had no hope of answering. The chauffeur replied: “I’m surprised to hear such an elementary question on high energy physics here in Munich. It’s so simple, I’ll let my chauffeur answer it.”In this world we have two kinds of knowledge. One is Planck knowledge, the people who really know. They’ve paid the dues, they have the aptitude. And then we’ve got chauffeur knowledge. They have learned the talk. They may have a big head of hair, they may have fine temper in the voice, they’ll make a hell of an impression. But in the end, all they have is chauffeur knowledge.
– Charlie Munger – USC School of Law Commencement Speech 07