Charlie Munger on Mental Models, Learning, and Life

TL;DR

Charlie Munger built his success not on prodigy-level intelligence but on gathering big ideas and mental models from many disciplines, a habit he traced to Benjamin Franklin and Harvard contracts professor Lon Fuller. Munger, who died at 99 just two weeks after this final CNBC interview, credited a lifelong drive to question every teacher and integrate law, economics, and psychology.

Transcript

Charlie Munger may be best known as Burkshire Hathaway's Vice chairman Warren Buffett's best friend Confidant and business partner for six and a half decades but Munger was also a giant in his own right a scold of corporate excess and greed who preached to a large flock of devout followers about how to get along in investing and in life a renaissan... Read More

Key Insights

• Charlie Munger died at age 99, one month shy of his 100th birthday and two weeks after this final CNBC interview, remembered as Berkshire Hathaway's vice chairman and Warren Buffett's partner of six and a half decades.
• Munger described his own mind as being in the top 1% but not a prodigy, so he deliberately avoided fields requiring prodigy-level genius and instead played the hand he was dealt to gain maximum advantage.
• The power of mental models came naturally to Munger, who pulled useful big ideas from many disciplines including mathematics, physics, psychology, and architecture, integrating them the way Benjamin Franklin drew on multiple fields.
• Munger's habit of critical thinking started in grade school, where he mentally revised textbooks and coursework to make them more correct because he recognized professors were teaching things wrong.
• Munger read the complete writings of Sigmund Freud in high school and concluded Freud was a lunatic, refusing to accept Freudian ideas from his Latin teacher who was a devoted Freud follower.
• Harvard professor Lon Fuller was the single most influential teacher in Munger's life because he integrated law and economics, showing why contracts make modern civilization work, echoing Adam Smith.
• Munger modeled himself partly on Benjamin Franklin, admiring his mixture of financial and regular life and his self-education, though he could not copy Franklin's musical talent, an ability Munger said God left out of him.
• Munger argued roughly 90% of human civilization's progress occurred in the last two centuries, driven by coal mines, steam engines, and the technical revolution that gave people leisure and time to think.

Questions & Answers

Q: How did Charlie Munger die and when was this interview recorded?

Charlie Munger passed away at the age of 99, just one month shy of his 100th birthday and two weeks after CNBC's last interview with him. The interview featured here was his final television interview, conducted with CNBC's Becky Quick at his home. He had served as Berkshire Hathaway's vice chairman and was Warren Buffett's best friend, confidant, and business partner for six and a half decades before his death.

Q: What did Charlie Munger think of his own intelligence?

Munger described himself as naturally arrogant but not that good of a mind, placing himself in the top 1% but insisting he was no prodigy. He recognized this early in life and said he never would have succeeded in a field that required a prodigy's mind. Instead, he had a much better mind than ordinary people and chose to play the hand he was dealt to extract as much advantage as possible, deliberately avoiding fields demanding genius-level ability.

Q: Why did Charlie Munger use mental models from different disciplines?

Munger said the practice of taking ideas from different studies and different models in life came naturally to him, and he could see the power of it. Because he was not a prodigy, he leaned on gathering big useful ideas across fields rather than mastering a single genius-level specialty. He studied subjects as diverse as mathematics, physics, meteorology, engineering, psychology, and architecture, integrating them much like his hero Benjamin Franklin drew on many disciplines at once.

Q: How did Charlie Munger approach his teachers and textbooks?

From grade school, Munger often revised the textbook and the course in his head to make them more correct, because he realized professors were teaching things wrong. He spent his whole life trying to turn every teacher into a critical exercise. A famous example: his Latin teacher was a devoted follower of Sigmund Freud, but after reading Freud's complete writings in high school, Munger decided Freud was a lunatic and refused to accept those ideas from her.

Q: Who was the most influential teacher in Charlie Munger's life?

Munger named Lon Fuller, whom he called the best contracts teacher in any law school, as the most influential teacher in his life. Fuller taught at Harvard Law School after a rare transfer and integrated law with economics, helping Munger understand why contracts make modern civilization work. Munger said Fuller almost made him a law professor and that he was never as struck by any other teacher, including gifted mathematicians and physicists he encountered.

Q: Why did Charlie Munger admire Benjamin Franklin?

Munger admired Benjamin Franklin as a self-educated prodigy who, with only about two years of grade school education, trained himself across many disciplines and even relearned algebra from a textbook late in life. Munger especially liked Franklin's mixture of financial life and regular life and tried to imitate his abilities. The one thing he could not copy was Franklin's musical talent, since Franklin played four instruments including one he invented, an ability Munger said God simply left out of him.

Q: What did Charlie Munger study in college and why?

Munger started at the University of Michigan studying mathematics because, as he put it, he could get an A without doing any work. He entered young after skipping grades. World War II interrupted his studies when he was 17, and he switched to physics, reasoning that biology and geology were not the proper sciences to handle a war. After mastering the first part of physics, he entered the Army Air Corps as a private.

Q: What did Charlie Munger believe about human progress over history?

Munger argued that about 90% of the progress of man and civilization occurred in the last two centuries. Born on the first day of 1924, he lived in the immediate aftermath of a hugely important century that opened coal mines and created steam engines during the technical revolution. This progress lifted the economic system enough that people had leisure and time to think rather than just finding food. He noted that before this era, roughly 80% of all people were farmers.

Summary & Key Takeaways

• Charlie Munger was best known as Berkshire Hathaway's vice chairman and Warren Buffett's best friend and business partner for six and a half decades, but he was also a giant in his own right, a critic of corporate excess and greed. A renaissance man, he modeled himself after Benjamin Franklin and died at 99.

• Munger said the power of drawing mental models from many disciplines came naturally to him. He considered himself naturally arrogant with a top 1% mind but no prodigy, so he avoided fields requiring genius and instead maximized his advantage. From grade school he revised textbooks in his head, recognizing teachers taught things incorrectly.

• Munger admired Benjamin Franklin's mix of financial and regular life and his self-education, and credited Harvard professor Lon Fuller as his most influential teacher for integrating law and economics. Born on the first day of 1924, Munger reflected that most human progress came in the last two centuries through the technical revolution.