10 Hard Rules of Life (Charlie Munger) That Can Steady Your Choices and Strengthen Your Future
Well, life does not come with a kind teacher and a gentle test. Life tests first and teaches after, and the lesson is often a hard one. Charlie Munger lived 99 years, and he learned to meet those hard lessons with a few plain rules. The hard rules of life in this article are his rules, and each one can steady your choices if you take it seriously.
Munger read for hours each day, and he said that a mind fed with good books grows stronger with each year. He took a simple idea and took it seriously, and that habit built a fortune of wisdom as well as money. His partner Warren Buffett has called him the best mind he ever met, and the praise was earned over sixty years of shared work. A life built on plain rules is a life that lasts, and Munger proved it.
I once watched a young trader chase every bright tip that crossed his desk, and the year ended with less money and more worry than it began. The next year he kept one slow plan, and the plan gave him more than the chase ever did. A guarded hour is worth more than a hundred rushed ones, and the lesson has stayed with me since. Munger would have nodded at that story, because he lived it for nine decades.
Berkshire Hathaway grew at about 20 percent a year for nearly six decades under Buffett and Munger, and that growth came from plain rules kept with patience. A sum of 1,000 dollars growing at 20 percent a year becomes about 6,200 dollars in ten years and about 38,300 dollars in twenty years. The numbers show what steady rules can do, and the same steady rules can guide a whole life. Hard rules are not cruel, and they are kind in the long run because they guard you from harm.
Read the ten rules slowly, and mark the ones that already fit your own life today. The hard rules of life may already be guiding you, and this article will help you see them in plain words. Each rule is a fact you can use in your own week, not a feeling you must guess at. A rule kept for a year can change a whole life, and ten rules kept can change it for good.
The short answer: the hard rules of life from Charlie Munger are ten plain rules, from taking a simple idea seriously to letting character compound like money. Each rule is strict yet kind, because it guards you from harm that a soft rule would let through. When you keep several of these rules together, your choices grow steadier, and your future grows stronger with every year you keep them.
Key Takeaways
- Take a simple idea and take it seriously.
- Invert and ask what could ruin it.
- Avoid stupidity before you seek brilliance.
- Spend less than you earn each month.
- Read a little every day.
- Stay inside your circle of competence.
- Admit mistakes fast and learn from them.
- Avoid bad people and choose good partners.
- Think in years, not in days.
- Let character compound like money.
1. Take a Simple Idea and Take It Seriously
Munger said that taking a simple idea and taking it seriously is the whole secret of a good life. Most people chase clever ideas, and the clever ideas fade in a week. A simple idea kept for a year beats a clever idea that is dropped in a month, because simple ideas are the ones that last.
The rule works on every part of life, and it asks only for patience. A simple plan to save a fixed share each month can build a real pile in ten years. A simple plan to read one page each night can fill a shelf with books in a year. Small plans kept are stronger than grand plans that are never started.
Pick one simple idea this week, and write it on a plain card. The idea can be to walk each morning, to save ten dollars each week, or to read ten pages each night. A card on the wall is a promise you can see, and a promise seen is a promise kept.
Guard the idea from noise, because the world will offer a hundred brighter ideas each day. A bright offer is often a trap, and the trap is baited with speed. A simple idea kept in calm is worth more than a hundred bright offers chased in haste.
Tell a trusted friend about your simple idea, so the idea gains a witness. A friend who knows the plan can ask about it with kindness, and the question will keep you on track. A shared plan is stronger than a secret plan, because two minds guard it.
Measure the idea after three months, and let the number speak for itself. If the saved pile has grown or the shelf holds new books, the rule is working. A simple idea that shows results is an idea worth keeping for a decade.
Look at your last year, and ask which simple idea you kept the longest. If one idea survived a full year, the hard rules of life are already guiding you. A life built on one simple idea at a time is a life that climbs without haste.
2. Invert and Ask What Could Ruin It
Munger loved a German trick of thought called inversion, and it means turning a problem upside down. Instead of asking how to win, ask what would make you lose, and then stay away from it. A person who asks what could ruin a plan is a person who avoids the traps that catch the eager.
The trick works on every choice in life, and it asks only for a calm minute. Before a large buy, ask what it will cost in a year, and the answer will guide your hand. Before a new promise, ask what it will take from your family, and the answer will guard your time.
List the three things that could ruin your year, and write them on a plain page. A late night that steals your sleep, a careless spend that eats your savings, and a harsh word that breaks a friendship are common harms. A harm that is named is a harm that can be refused, and a harm that is hidden grows in the dark.
Munger once said that all he wanted to know was where he would die so he would never go there. The joke holds a deep rule, and the rule is to know the traps before you walk. A trap seen from afar is a trap easily avoided, and a trap met by surprise is a trap that bites.
Use inversion on your work, and ask what would make your boss lose trust in you. The answer is often a small thing, like a missed promise or a late report, and the fix is just as small. A worker who avoids the small harms is a worker whose name stays clean for years.
Teach your children this way of thinking, so the habit of inversion passes to the next generation. A child who learns to ask what could go wrong will grow into an adult who avoids traps with ease. That lesson is a gift that no shop can sell, and it guards the whole family for life.
Look at the last three large choices you made, and ask if inversion guided each one. If the answer is yes, the rule is strong, and your choices are already steadier. A mind that asks what could go wrong is a mind that walks a safe road.
3. Avoid Stupidity Before You Seek Brilliance
Munger taught that avoiding stupidity is easier than seeking brilliance, and the plain fact is that most harm comes from simple errors. A brilliant plan can fail on a single careless step, while a plain plan kept with care rarely fails. A person who avoids foolish errors is a person who keeps what he has, and keeping is the first step to growing.
The rule shows in the small errors that people make each day. A hasty signature, a promise made in anger, and a large buy made in haste are all stupidities that a calm minute would have stopped. A calm minute before each large choice is the cheapest guard a person can buy.
Keep a plain list of your past errors, and read it once each month. A list of errors is a map of the traps you have already met, and the map grows more useful each year. A mind that remembers its errors is a mind that rarely repeats them.
Sleep is the first guard against stupidity, because a tired mind makes foolish choices. A worker who sleeps seven hours thinks better than one who sleeps five, and the gap shows in every choice he makes. Sleep is free, and it guards more sense than any lock.
Ask a trusted friend before a large choice, and let a second mind check your own. A friend may see a trap that your eager heart has missed, and the warning can save a year of regret. Two calm minds are stronger than one eager mind, and the strength shows in the choice.
Do not chase clever tricks, because clever tricks are often traps in bright clothes. A plain plan kept for a year beats a clever trick that fails in a week, and the plain plan asks only for patience. Simple sense is the strongest sense, because it is the sense that lasts.
Look at your last year, and count the foolish errors you avoided by waiting. If the count is three or more, the rule is strong, and your life is already steadier. A person who avoids stupidity is a person whose future is safe from his own hands.
4. Spend Less Than You Earn Each Month
Munger lived a plain life while his wealth grew, and he taught that the gap between what you earn and what you spend is the seed of freedom. A family that spends less than it earns each month holds a gap, and the gap grows into a pile that guards the whole family. A pile built slowly is a pile that lasts, and the lasting pile is the true wealth.
The rule starts small, and five percent of pay is a fair start for a tight month. Ten percent is stronger, and twenty percent is the mark of a family that is truly moving up. The size matters less than the rule, because the rule is what guards the money.
The table below shows how a sum of 1,000 dollars grows at 20 percent a year when it is left to grow in peace. In ten years the sum becomes about 6,200 dollars, and in twenty years it becomes about 38,300 dollars. In thirty years the sum becomes about 237,000 dollars, and that growth came from patience, not from luck.
| Years left to grow | 1,000 dollars at 20 percent a year | What the growth shows |
|---|---|---|
| 10 years | about 6,200 dollars | patience beats a lucky year |
| 20 years | about 38,300 dollars | steady rules build real wealth |
| 30 years | about 237,000 dollars | time is the strongest partner |
Move the saved share aside on the day the pay arrives, before the week can spend it. A sum moved early is a sum that is saved, and a sum that waits will be spent on wants. The move takes five minutes, and it guards a whole month of new pay.
Keep the saved share in a place that is hard to reach on a whim. A separate account at the bank or a box that is out of sight can hold it safe from daily wants. If the saved share sits beside the spending money, it will be spent, and the safety will vanish.
Raise the share by one small step each year, and let the habit grow with your pay. A rise from five percent to six percent is a small step, yet it adds up to a real sum over ten years. Small steps kept for a decade can build a pile that a single lucky year never could.
Look at your last twelve months, and count how many months held a fixed save. If the count is ten or more, the rule is strong, and your future is already growing. A habit that survives a full year is no longer a plan, and it is a part of who you are.
5. Read a Little Every Day
Munger read for hours each day, and he said that a mind fed with good books grows stronger with each year. A person who reads a little each day is a person who grows, and the growth shows in his work and his talk. The best version of yourself is a reading self, and the reading never stops.
The sign shows in a finished book, a new skill, or a fresh idea shared at the dinner table. A worker who learns a new tool can ask for more, and a worker who learns nothing must take what is given. Learning is the engine of growth, and the engine runs on small hours.
Keep the reading small and steady, and let one page a night be enough. A page read each night is 365 pages in a year, and 365 pages can hold two or three good books. Small reading kept for a year beats a grand course that is never finished.
A study by University College London found that a new habit takes about 66 days to feel natural, and the range runs from 18 days to 254 days. That number shows that a reading habit grows stronger with each week, and the hard days are the days that build it. A mind that reads for two months is a mind that is already changing.
Write down each book you finish, and keep the list where you can see it. A list of ten books in a year is a mirror that shows your growth in ink. The list need not be grand, and it needs only to be honest.
Share what you read with a friend or a child, and the learning will grow deeper. A lesson taught is a lesson kept twice, and a mind that teaches is a mind that truly knows. Teaching is the last step of learning, and it is the step that makes the lesson last.
Count the books you finished last year, and let the number speak for itself. If the count is six or more, the rule is strong, and your mind is already growing. A mind that reads each day is a mind that stays young for life.
6. Stay Inside Your Circle of Competence
Munger kept a plain rule about knowing your own limits, and he called it the circle of competence. The rule means staying inside what you truly know, and asking for help outside it. A person who knows his own limits is a person who avoids the traps that catch the eager.
The circle is not small, and it grows with each new skill you learn. A worker who learns one new skill each year can widen his circle, and a worker who learns nothing must stay where he is. An hour of learning each night is a small price for a wider circle.
The rule shows when you say a plain no to work you do not understand. You pass the task to a person who knows it well, and you thank them for the help. A no given with honesty is stronger than a yes given with false pride, and the honesty guards your name.
Break each large task into small parts, and ask which parts sit inside your circle. The parts inside are yours to do, and the parts outside are for a skilled friend. A task split this way is easier to finish, and each part can be judged on its own.
Do not let pride push you outside your circle, because pride is the trap that catches clever people. A clever person who acts outside what he knows is a person walking in the dark. A wise person knows the dark and stays in the light, and the light is his circle.
Teach your children this rule, so the habit of honest limits passes to the next generation. A child who says he does not know learns faster than a child who pretends. That lesson is a gift that no shop can sell, and it guards the whole family for life.
Look at the last three large tasks you took on, and ask if each one sat inside your circle. If the answer is yes, the rule is strong, and your work is already steadier. A person who knows his limits is a person whose choices rarely go wrong.
7. Admit Mistakes Fast and Learn From Them
Most people hide a mistake, and the hiding makes the mistake grow. A person who admits a mistake fast is a person who grows, because the fix starts the moment the mistake is named. Munger taught that a fast admission is the first step away from stupidity, and the step is the hardest one to take.
The sign shows in a plain sentence spoken without fear. You say that you were wrong, and you say what you will do to fix it. A sentence like that takes courage, and courage is the mark of a person who is growing.
I keep a small notebook of my errors, and the pages have taught me more than any praise. A page of mistakes and fixes is a map of your growth, and the map grows longer each year. The notebook need not be grand, and it needs only to be honest.
A fast fix saves more than pride, and it saves money, time, and trust. A small error fixed today costs a little, while the same error hidden for a year costs far more. The math of a fast fix is plain, and the numbers always favour the honest person.
Do not scold yourself for the mistake, and spend the strength on the fix instead. A mistake is a lesson that has already been paid for, and the lesson is wasted if it is hidden. A mind that learns from its errors is a mind that grows stronger with each year.
Teach your children to admit mistakes with the same calm courage. A child who says he was wrong without fear will grow into an adult who fixes problems fast. That lesson is a gift that no shop can sell, and it guards the whole family for life.
Look at the last three mistakes you made, and ask how fast each one was named. If the last one was named the same day, the rule is strong. A person who names mistakes fast is a person who is learning the hard rules of life.
8. Avoid Bad People and Choose Good Partners
Munger taught that the fastest way to ruin a life is to spend it with the wrong people. A bad partner can undo ten years of good habits in a single year, while a good partner can lift a plain life into a fine one. A person who chooses his partners with care is a person who guards his future.
The rule shows in the friends you keep and the partners you trust with your work. A partner who keeps his word is a partner worth keeping, and a partner who breaks it is a partner to leave. A broken promise from a partner is a warning, and the warning should be heard the first time.
Buffett found his lifelong partner in Munger, and the two men sharpened each other for more than sixty years. Each one made the other wiser, and the friendship built a fortune of ideas as well as money. A good partner is the rarest treasure, and Buffett found his early.
Watch how a new partner treats people who can do nothing for him. A waiter, a cleaner, and a driver all meet the same man, and the man who is kind to each of them is a man worth trusting. People judge you by how you treat those below you, not by how you treat those above you.
Leave a bad partnership early, and leave it with a calm word. A partnership that brings daily worry is a partnership that steals your years, and the years will not return. A calm exit today is kinder than a bitter end in five years, and the kindness is for yourself as well as for them.
Teach your children to pick partners who lift them, and let the lesson start at your own table. A child who eats with builders learns to build, and a child who eats with mockers learns to mock. The circle you keep is the school your children attend each day.
Look at the five people you spend the most time with, and ask what they are building. If the list holds learners, savers, and kind builders, the rule is strong, and your future is already brighter. A life moves up with its company, and your company is lifting you.
9. Think in Years, Not in Days
Most minds live in days, and the plan reaches only as far as the next payday. Munger lived in decades, and he asked what a choice would look like in ten years before he made it. A person who thinks in years is a person who makes wiser choices, because the years test every choice with patience.
The rule shows when you write a plan for the next five years, and the plan sits where you can see it. A plan for a skill, a home, and a child in school gives each week a clear purpose. A week with a purpose is a week that moves, and a week without one drifts.
Ask what happens next, and then ask what happens after that. A choice that looks good today and bad in a year is a bad choice, and a choice that looks hard today and good in a year is a wise one. A year is the true test of any choice, and the test never lies.
Break the long plan into small steps, and take one step each month. A plan to learn a trade can start with one night class, and a plan to own a home can start with one saved share. Small steps are the legs of a long plan, and the legs carry it forward.
Review the plan once each season, and change it with a calm hand when life shifts. A plan that is reviewed stays alive, and a plan that is forgotten fades like old ink. Four reviews a year are enough to keep the plan true and the steps small.
Share the plan with your family, so each person can own a part of it. A wife who knows the goal can guard the spending with pride, and children who know the goal can study with a clear aim. A shared plan is stronger than a secret plan, because many hands carry it.
Write your five year plan tonight, and keep it to five short lines. A skill, a home, a pile, a child in school, and a calm old age are all the lines you need. If the lines feel real to you, the rule is strong, and your years are already moving up.
10. Let Character Compound Like Money
Munger knew that money grows by compounding, and he knew that character grows the same way. A small honest act kept each day grows into a name that others trust, and the trust grows with each year you keep it. A person whose character compounds is a person whose worth grows even while he sleeps.
The rule shows in the small acts that no one sees. You return a lost coin, and you tell no one about it. You keep a promise made in private, and the keeping builds a name that money cannot buy. Small acts kept for a year are worth more than grand acts done once for praise.
Buffett once said it takes 20 years to build a reputation and five minutes to ruin it, and his whole life proves the point. He guarded his name with the same care that he guarded his money, and the guarding paid him back for sixty years. A name guarded for decades is a name that opens doors no money can open.
Guard your name from one careless act, because a single act can undo a decade of good. A harsh word spoken in anger, a promise broken in haste, and a secret shared in gossip are all small acts with a long cost. A calm minute before each act is the cheapest guard a person can buy.
Teach your children this rule, so character becomes the wealth of the whole family. A child who learns that a kept word is worth more than a kept coin will grow into an adult others trust. That lesson is a gift that no shop can sell, and it guards the family for life.
A name built slowly is a name that lasts, and the lasting name is the true wealth. Money can be lost in a single year, yet a trusted name can rebuild a fortune in the next. Character is the only wealth that no market can take, and the only wealth that grows with age.
Look at your last year, and ask if your name grew stronger or weaker. If the answer is stronger, the hard rules of life are already working in you. A life whose character compounds is a life that ends richer than it began, and the richness is measured in trust.
Conclusion
These ten rules share one plain idea, and that idea is that a steady life is built on plain rules kept for years. The hard rules of life are not about luck, and they are about a simple idea taken seriously, a trap avoided, and a name guarded with care. Each rule is a fact you can use in your own week, and the facts add up to a real change.
Munger showed by his long life that slow growth beats fast noise, and his way was simple. He took a simple idea and took it seriously, and he kept that habit for ninety nine years. His way asks for no large sum and no lucky break, and it asks only for a clear mind and a calm step each day.
I hope you count your own rules tonight, and mark each one with an honest hand. You may hold four or five already, and that is a strong start for any person who is growing. Pick the weakest rule first, and give it one small step this week.
Your past does not decide your future, and your age does not decide it either. Your daily habits decide it, one small choice at a time, and each choice is a brick in a new life. A person who keeps his habits in calm is a person who climbs, and the climb is real even when it is slow.
Share this article with a friend who is working on himself yet wonders if the work is showing. A shared rule is easier to keep than a lonely one, and a friend who keeps his rules with you grows with you. Talk about the ten rules over a meal, and let each person name the one they need most.
A year from now, the rules will be clearer, and the life they point to will feel more like home. Keep the simple idea, keep the reading hour, and keep the calm that a clear mind brings. Hard rules are not a single leap, and they are a slow climb that rewards each steady foot.
Tonight, before the day ends, take one small step that proves the rules are real. Read one page, write your five year plan, or name the three traps that could ruin your year. A year from today, you will be glad you started on this very night.
