"You have to know accounting. It's the language of practical business life. It was a very useful thing to deliver to civilization. I've heard it came to civilization through Venice which of course was once the great commercial power in the Mediterranean. However, double entry bookkeeping was a hell of an invention."
"In Gillette's case, they keep surfing along new technology which is fairly simple by the standards of microchips. But it's hard for competitors to do. So they've been able to stay constantly near the edge of improvements in shaving."
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Source: A Lesson on Elementary, Worldly Wisdom as it Relates to Investment Management and Business. Charlie Munger's lecture to the students at the University of Southern California in Los Angeles, 1994.
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