The late Charlie Munger spent decades watching smart people ruin their lives with low emotional intelligence. Not through bad luck. Through bad temperament. The gap between the two explains most failures he witnessed in business and in life.
The ten behaviors below are taken directly from his own words. Some are short. Some take a little unpacking. Together they sketch what emotional intelligence looks like when it’s actually lived out, not just talked about.
1. They Control Raw Irrational Emotion
A person with real emotional control doesn’t let a bad afternoon become a bad decision. Munger watched brilliant people wreck their own portfolios and their own careers because a spike of fear or excitement took the wheel. He didn’t think this was a minor flaw. He thought it was often the whole problem.
“A lot of people with high IQs are terrible investors because they’ve got terrible temperaments. And that is why we say that having a certain kind of temperament is more important than brains. You need to keep raw irrational emotion under control. You need patience and discipline and an ability to take losses and adversity without going crazy. You need an ability to not be driven crazy by extreme success.” – Charlie Munger.
Patience isn’t passive here. It’s a skill, built the same way any other skill gets built. Through practice, through failure, through the slow accumulation of moments where a person chose steadiness instead of panic.
2. They Actively Destroy Their Own Cherished Ideas
Most people defend their opinions as if they were personal property. Munger did the opposite. He went looking for the argument that would prove him wrong, on purpose, because he wanted the correction more than he wanted the comfort of being right.
“We are all learning, modifying, or destroying ideas all the time. Rapid destruction of your ideas when the time is right is one of the most valuable qualities you can acquire. You must force yourself to consider arguments on the other side.” – Charlie Munger.
This takes a strange kind of confidence. Enough security in yourself that being wrong doesn’t feel like an attack. A person who can drop a bad idea in five minutes will always out-learn a person who needs five years to let one go.
3. They Know the Limits of Their Competence
Ask a person with high emotional intelligence what they don’t understand, and they’ll tell you without hesitation. No hedging. No pretending. Just a clear line drawn around what they actually know.
“Knowing what you don’t know is more useful than being brilliant.” – Charlie Munger.
Overconfidence has ruined more careers than ignorance ever has. A person who knows the edge of their own understanding stops before that edge. That’s the whole trick, and it’s harder than it sounds.
4. They Act Safely Within the Golden Rule
Munger’s version of ethics was almost mathematical in its simplicity. Want something. Deserve it. In that order, always.
“The safest way to try to get what you want is to try to deserve what you want. It’s such a simple idea. It’s the golden rule.” – Charlie Munger.
People who operate this way tend to build things that last. A reputation earned slowly through fair dealing doesn’t collapse the first time someone tests it. Shortcuts might work once. They rarely work twice.
5. They Possess an Internal Compass
There’s a difference between what’s legal and what’s right, and Munger never confused the two. He held himself to standards nobody was forcing him to meet.
“You ought to have an internal compass. So there should be all kinds of things you won’t do even though they’re perfectly legal. That’s the way we try to operate.” – Charlie Munger.
This behavior doesn’t need an audience to hold up. A person with a real internal compass acts the same way whether anyone’s watching or not. That consistency is the whole point.
6. They Resist the Tyranny of Ideology
Strong beliefs can turn into a cage if a person holds them too tightly. Munger watched this happen to otherwise sharp minds and warned against it directly.
“You want to be very careful with intense ideology. It presents a big danger for the only mind you’re ever going to have. If you want to end up wise, heavy ideology is very likely to prevent that outcome.” – Charlie Munger.
A person can hold a position firmly and still leave room to update it. That flexibility is rare, and it’s exactly what keeps a mind sharp instead of making it closed to new information. The people who never bend eventually break.
7. They Practice Inversion to Avoid Common Pitfalls
Munger liked to flip a problem over and look at its underside. Instead of asking how to succeed, he’d ask how to fail, then work backward from there.
“Invert, always invert: Turn a situation or problem upside down. Look at it backward.” – Charlie Munger.
This isn’t just a thinking trick. It’s an emotional discipline too. Looking hard at failure before it happens takes a kind of nerve that most people avoid, because it means sitting with an uncomfortable picture instead of a hopeful one.
8. They Openly and Quickly Admit Mistakes
Pride gets in the way of almost everything. Munger had none of it when it came to his own errors, and he said as much.
“I like people admitting they were complete stupid horses’ @sses. I know I’ll perform better if I rub my nose in my mistakes. This is a wonderful trick to learn.” – Charlie Munger.
Notice he called it a trick worth learning, not a talent you’re born with. Anyone can practice this. Say it plainly. Look at what went wrong. Move on without the theater of self-punishment or the excuses that usually follow a mistake.
9. They Guard Against Envy and Jealousy
Of all the flaws Munger discussed, envy got some of his sharpest words. He thought it was the one sin with absolutely nothing to recommend it.
“Envy is a really stupid sin because it’s the only one you could never possibly have any fun with. There’s a lot of pain and no fun. Why would you want to get on that trolley?” – Charlie Munger
Every other vice at least offers a moment of pleasure before the cost comes due. Envy skips straight to the cost. A person who can watch someone else win without feeling diminished by it has already solved a problem most people carry for life.
10. They Protect Unstructured Time to Think
Munger didn’t fill every hour. He left space, on purpose, for nothing in particular except thinking.
“We both insist on a lot of time being available almost every day to just sit and think. That is very uncommon in American business. We read and think.” – Charlie Munger.
Busyness can feel like productivity while doing very little actual thinking. A person who protects quiet time isn’t wasting it. They’re doing the work that everyone else skips because it doesn’t look like work from the outside.
Conclusion
Munger’s ten behaviors don’t describe a personality type so much as a set of habits anyone can practice. Patience under pressure. Willingness to be wrong. Honesty about what you don’t know. None of these requires genius. They require repetition.
The people who build the steadiest lives and the steadiest careers aren’t always the sharpest in the room. They’re the ones who trained themselves out of the reactions that sink everyone else. Munger lived long enough to prove that this kind of discipline compounds just as reliably as money does.