Charlie Munger

Munger's whole thing is mental models. The idea is simple: instead of being an expert in one field, you learn the core concepts from as many different fields as possible — psychology, biology, physics, economics, history — and then use that whole toolkit to think about problems.

He calls it a latticework of mental models. It sounds like a self-help concept.

It's actually how he consistently made better decisions than almost everyone around him. On investing, he pushed Buffett away from his old mentor's approach — which was basically "find dirt-cheap companies and flip them fast" — toward something more durable: find the best businesses in the world and hold them forever.

The key word he uses is moat. A business so dominant that competitors can't touch it.

Think Coca-Cola. He was also deeply influenced by psychology, particularly the ways humans reliably fool themselves.

He gave a famous talk called "The Psychology of Human Misjudgment" listing 25 ways our brains get things wrong. Reading it once will change how you make decisions.

Mohnish Pabrai

Pure Buffett-Munger cloning. Mohnish doesn't pretend to be original and that's his superpower.

He coined the term "cloning" for his approach: find the best investors in the world, study their moves, understand their reasoning, and copy what makes sense. He runs a concentrated portfolio — typically 10 or fewer positions.

He looks for what he calls "Dhandho" — a Gujarati word meaning "endeavors that create wealth." The Dhandho framework is simple: heads I win big, tails I don't lose much. He wants asymmetric bets where the downside is limited but the upside is massive.

He's willing to go heavily into emerging markets, especially India and Turkey, where he sees mispriced assets that Western investors ignore. He holds for years, trades very rarely, and does almost nothing most of the time.

Charlie Munger

Invert. Always invert.

That's his most famous rule — borrowed from the mathematician Jacobi. Instead of asking "how do I succeed?" ask "what would guarantee failure, and then avoid those things." It sounds obvious.

Almost nobody actually does it. He believes the secret to a good life and good investing is the same: figure out what you want to avoid, avoid it relentlessly, and most good things follow.

On wealth: getting rich isn't the hard part — keeping it is. Most people blow up by using borrowed money, getting greedy at the top, or panicking at the bottom.

Don't do those things. On decisions: only make the big bet when you're very sure.

Be patient for a long time, then move fast when the opportunity is obvious.

Mohnish Pabrai

Pabrai's philosophy is built on a few bedrock ideas. First: be a shameless cloner.

If someone smarter has figured it out, copy them. Second: look for low-risk, high-uncertainty situations — the market prices uncertainty as if it were risk, but they're not the same thing.

Third: invest in your circle of competence and expand it slowly. Fourth: compounding is the eighth wonder of the world, so start early and be patient.

Fifth: give back. He takes the Buffett giving pledge seriously — his Dakshana Foundation is the real deal, not a vanity project.

He genuinely believes wealth creation and philanthropy are two sides of the same coin.

Charlie Munger

Munger's approach to risk: don't take risks you don't understand, and don't take risks you don't need to. He kept things simple.

He concentrated into a small number of businesses he understood deeply. He never used borrowed money.

He kept large cash reserves. His view on diversification was almost the opposite of what most financial advisors tell you — he thought spreading money across 50 stocks was an admission that you hadn't done enough homework.

If you've done the work, you concentrate. If you haven't, maybe don't invest at all.

Mohnish Pabrai

Moderate to aggressive on individual positions, conservative in structure. Each position can be 10-20% of his portfolio, which is concentrated by any standard.

But he only buys when his downside analysis shows limited risk of permanent loss. He's comfortable with volatility — his fund dropped 60-70% in 2008 and he didn't panic.

He views drawdowns as temporary if the business thesis is intact. He keeps a big cash position when he can't find cheap stocks, sometimes 30-40% in cash.

He's also willing to invest heavily in countries most American investors won't touch.

Charlie Munger

Munger lived in the same house in Los Angeles for most of his adult life. He was famously frugal — not in a miserable way, but in a "I genuinely don't care about most things money buys" way.

He flew commercial until fairly recently. He read obsessively.

He described himself as a book with legs. His children joked that he was more interesting to talk to than almost anyone alive, but would only engage on topics he found intellectually stimulating.

He donated massively to education — hundreds of millions to Harvard Law School, the University of Michigan, and other institutions, often with very specific conditions attached. He designed buildings as a hobby and funded their construction himself.

He died at 99 worth around $2.6 billion — extraordinary by any measure, and somehow modest given he sat next to one of the richest men in history for 45 years.

Mohnish Pabrai

Mohnish lives simply relative to his wealth. He drives a used car, lives modestly, and has said he spends very little time worrying about material possessions.

He reads voraciously — 3-4 hours a day, mostly annual reports, business biographies, and investor letters. He takes a no-meeting approach to his day: he has no office, no analysts, no team.

He invests alone from his home in Irvine, California. He checks his portfolio rarely and makes maybe 2-3 investment decisions per year.

The rest of the time he reads, thinks, and works on Dakshana. He's also a creature of habit — he follows a similar daily routine year-round.

Charlie Munger

See's Candies. In 1972, Munger convinced a reluctant Buffett to pay what seemed like an expensive price — $25 million — for a California candy company.

Buffett thought it was too much. Munger held firm.

See's has since generated over $2 billion in profit for Berkshire, basically funding dozens of other acquisitions. It also taught Buffett the single most important lesson of his career: paying a fair price for a great business beats getting a cheap price for a mediocre one.

That one deal changed the entire direction of Berkshire Hathaway.

Mohnish Pabrai

His bet on Fiat Chrysler (now Stellantis) starting around 2012 was a masterclass. He bought the stock when Sergio Marchionne was restructuring the company and the market was deeply skeptical.

The stock roughly tripled. He also made a killing on Rain Industries, an Indian chemical company that most Western investors had never heard of.

He bought it cheap, the company's fundamentals improved dramatically, and the stock went up several hundred percent. These wins perfectly illustrate his method: find overlooked companies in overlooked markets and let the market catch up.

Charlie Munger

Munger is famous for avoiding mistakes more than for making spectacular wins — his whole philosophy is about not doing stupid things. But he's admitted to a few.

He said Berkshire was too slow to move into BYD, China's electric vehicle company, despite knowing it was exceptional for years before they finally bought in. He also held too much Wesco Financial for too long when the money could have been put to better use elsewhere.

His most honest self-criticism: he wished he had moved faster when the evidence was already clear. For a man who spent his career warning others about psychological biases, he wasn't immune to them.

Mohnish Pabrai

The 2008 financial crisis was brutal for Pabrai. His funds lost 60-70% of their value.

He was heavily concentrated in financial stocks and housing-related plays going into the crash. He's been completely transparent about this — he calls it a humbling experience that made him a better investor.

He also admits he's made mistakes holding some positions too long after the thesis broke, particularly in some emerging market bets. But his willingness to openly discuss failures is one of the things that makes him credible.

Charlie Munger

Charlie Munger grew up in Omaha — same city as Buffett, but they didn't know each other yet. His father was a lawyer.

So was his grandfather. Charlie became one too, but he was clearly more interested in figuring out how the world worked than in courtrooms.

He studied math at the University of Michigan, got drafted into World War II, trained as a meteorologist, and somehow ended up at Harvard Law School without ever finishing an undergraduate degree. Harvard took him anyway.

He graduated in 1948 and moved to California to practice law. He was good at it.

He was also quietly building a real estate business on the side that made him more money than law ever did. He and Buffett met at a dinner in Omaha in 1959.

Munger was 35. Buffett was 28.

By the end of the night, Buffett was trying to convince Munger to go into investing full time. It took about a decade.

Munger ran his own investment partnership from 1962 to 1975 — returned 24% annually while the market did 6.4%. Then he fully merged his career with Buffett's at Berkshire, where he stayed until his death in 2023.

Mohnish Pabrai

Mohnish Pabrai was born in Mumbai in 1964 and moved to the US for college. He started his career as an IT consultant and founded TransTech Inc., an IT consulting firm, in 1991 with $100,000 in savings and $70,000 on credit cards.

He grew it to $20 million in revenue and sold it. In 1999, he read a book about Buffett and had a revelation: investing was simpler and more profitable than running a business.

He started Pabrai Investment Funds with $1 million — $100,000 of his own money and the rest from friends and family. By 2007, his funds had compounded at over 28% annually.

The 2008 crash hit him hard — his funds dropped 60-70%. But he recovered and kept compounding.

His total assets under management have exceeded $1 billion. In 2007, he and Guy Spier famously paid $650,100 at a charity auction to have lunch with Warren Buffett.

He's also a major philanthropist — his Dakshana Foundation has helped thousands of underprivileged Indian students get into top engineering and medical schools.

Charlie Munger

Munger's main stage was Berkshire Hathaway, where he served as Vice Chairman from 1978 until he died. His role was hard to define on paper — he didn't run a fund or manage a portfolio.

What he actually did was talk to Buffett. That was worth a trillion dollars.

Before Berkshire, he ran his own investment partnership from 1962 to 1975 that crushed the market. He also controlled Wesco Financial, a small insurance and financial company he ran as a personal Berkshire subsidiary from 1973 to 2011, until Berkshire fully absorbed it.

Outside finance, he was obsessed with architecture — he personally designed several buildings, including a dormitory at the University of Michigan that his own architecture school rejected for violating design principles. He funded it anyway.

Mohnish Pabrai

Pabrai Investment Funds — his hedge fund modeled directly after Buffett's original partnership structure. No management fee, just a performance fee above a hurdle rate.

TransTech Inc. — his first company, an IT consulting firm he built from scratch and sold.

Dakshana Foundation — his philanthropy arm that coaches underprivileged Indian students for IIT and medical school entrance exams. Over 15,000 students have gotten into top schools through the program.

Charlie Munger

University of Michigan, mathematics — left for World War II without graduating. US Army Air Corps, meteorology training.

Harvard Law School, JD 1948 — admitted without an undergraduate degree, which Harvard is apparently capable of when it wants to be.

Mohnish Pabrai

Pabrai earned a bachelor's degree in electrical engineering from Clemson University in South Carolina. He's entirely self-taught as an investor — no MBA, no finance degree, no Wall Street training.

Like Buffett, he learned investing from books, primarily The Intelligent Investor and Buffett's shareholder letters. He considers his engineering background an advantage because it taught him systematic thinking and first-principles analysis.