Daily Wisdom book cover. Black serif type on cream, with a maze and a single red path through it.

A year-long course in not fooling yourself: a verified quotation, a three-minute essay, and one question, for every day of the year.

Daily Wisdom

for Founders, Investors, and Managers: 366 Meditations on Mental Models, Misjudgment, and Money

First edition · Kindle, paperback, and hardcover · 366 meditations · 399 pages in print

One bad hire costs a year. One bad acquisition costs a decade. One bad partner can cost you the company. Avoided mistakes compound like invested money, and almost nobody studies avoidance. The standard stupidities never go out of style: people overpaid for glamour stocks in 1720, in 1999, and in 2021, and founders ran out of cash in every decade on record. The names change. The errors are reruns. This book studies the reruns, one page a day, until you recognize them from the opening scene.

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02 · What it is

One page a day

Start on today's date, or on January 1, or anywhere. The year is a circle; you will pass every page eventually.

Each page has three parts: a quotation, verified and attributed; a short essay; and a closing prompt, a question to sit with or a small action to take. The prompt is the point. Reading the page takes three minutes; the page only pays if the prompt survives into your day.

The months are themed, and later pages assume earlier ones the way a course assumes its prerequisites. Cross-references like "February 14" point back to the day where an idea was built. Ignore them on a first pass; they are for the second. At the back, Sources by Day lists where every quotation comes from, and Further Reading lists the books behind each month, in the order I would hand them to a friend.

Two habits multiply the book's value. Keep a notebook; many prompts ask you to write, and the writing is where the thinking happens. And reread. The same page reads differently in a bull market and a bear market, before a decision and after one.

03 · Who it's for

Three readers

The pages rotate among three readers, because the three jobs share one underlying craft: making decisions under uncertainty, with other people's trust at stake. Most days speak to all three. All days speak to the person underneath the job.

  • The founder watching runway. October is your month, but the base rates, the cash arithmetic, and the partner problems are spread across the year.
  • The investor watching yourself. Temperament, not IQ, is the scarce input, and the barriers were never intellectual.
  • The manager building a machine that runs without you. Design the incentives, deserve the trust, tell the truth fast, delegate to the edge, protect the standards.

And anyone who suspects the expensive mistakes are more avoidable than the successes are copyable.

04 · The year

Twelve months, one argument

The content follows Peter Bevelin's map and the thinkers he drew on. The first half builds the frame and studies how the mind fails. The second half turns outward: money, investing, management, founding, and what all of it is for.

January · The Latticework

Knowledge only works when it hangs together. A fact you cannot connect is a fact you will forget. This month builds the frame the other eleven hang on.

February · The Machinery of Misjudgment

Your brain is legacy hardware. Bevelin, following Munger, cataloged twenty-eight psychological reasons we misjudge. One per day, with the leap day for what happens when several fire at once.

March · Guarding the Mind

February cataloged the bugs. March installs the patches: procedures, questions, and habits that catch the error before it ships. None of them are clever. All of them work because they don't depend on you being at your best.

April · The Mathematics of Wisdom

About ten ideas, held firmly: compounding, probability, expected value, regression, ruin. Most expensive errors are not calculation failures. They are failures to see that a calculation applies.

May · Lessons from Darwin

Markets are ecosystems with quarterly reporting. Variation and selection, niches and predators, signals and mimicry, extinction and adaptation. Where the analogy breaks, the book says so.

June · Systems and Second-Order Effects

A company is not a machine with levers. It is a system, and it answers every intervention with consequences you did not order. The fix is almost never "try harder."

July · The Psychology of Money

Money decisions are made in minds, by people with histories, fears, and neighbors. Morgan Housel's territory: why keeping wealth is a different skill from making it. Less math than April. More mirrors.

August · The Investor's Temperament

Everything you need to know about investing fits in a pamphlet, and the pamphlet has been public for ninety years. Almost nobody can follow it. The barriers are temperamental, not intellectual.

September · The Manager's Craft

Design the incentives, deserve the trust, tell the truth fast, delegate to the edge, protect the standards, build a machine that runs without you. None of it requires charisma. All of it requires spine.

October · The Founder's Path

Survival, focus, customers, cash, partners, pricing, and the long game, with the base rates in view and the romance left at the door. The failures cluster around a short list of preventable causes. This month is that list.

November · The Not-To-Do List

Munger's 1986 commencement trick: prescribe guaranteed misery and let the audience invert. The reliable roads to failure, then a week in Sherlock Holmes's company. Wisdom, this month insists, is mostly subtraction.

December · The Good Life

What is all this optimization for? The Stoics, whom Munger read and quoted; the virtues that outlast portfolios; the arithmetic of enough. Wisdom's last application is not a better decision. It is a life you would re-choose.

05 · Two pages from the book

Two pages, unabridged

Every page in the book looks like these two. The first opens the year. The second opens November.

January 1 · Why Wisdom

"When you have faults, do not fear to abandon them."

CONFUCIUS, Analects (trans. James Legge)

Start with uncomfortable arithmetic. One bad hire costs a year. One bad acquisition costs a decade. One bad partner can cost you the company. Avoided mistakes compound like invested money. Almost nobody studies avoidance.

We study success stories instead. They flatter us. Failures instruct us, and we skip them.

Wisdom, as this book uses the word, is not brilliance. It is a working knowledge of how things fail, held firmly enough that you fail less often than the people around you. That is a real competitive advantage, because the standard stupidities never go out of style. People overpaid for glamour stocks in 1720, in 1999, and in 2021. Founders ran out of cash in every decade on record. The names change. The errors are reruns.

Confucius stated the entry fee twenty-five centuries ago. You will commit faults. The question is what happens next. Most people defend the fault, because admitting it stings. So they pay for the same lesson twice, then a third time, at rising prices. The second bill is rarely denominated in money alone. It comes in years, in partners, in the chance that does not come back.

This year, one page a day, we study the reruns until you recognize them from the opening scene.

Ask yourself: What mistake have I already paid for more than once? What would it take to actually abandon it?

November 1 · Consistently Not Stupid

"It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent."

CHARLIE MUNGER

Munger is not claiming that brilliance is worthless, or that Berkshire won by accident. He is observing where the returns actually came from, and his answer is avoidance. Not the genius trades made, but the standard stupidities not committed: the leverage not taken, the manias not joined, the reputations not gambled. Buffett put it the same way in the 1989 letter, after twenty-five years of buying businesses. He and Munger had not learned to solve difficult business problems. They had learned to avoid them, by looking for one-foot hurdles to step over rather than seven-foot ones they might clear.

The arithmetic runs through this book. Errors are asymmetric. Losses require outsized gains to repair (April 20), and some end the game entirely; no accumulated brilliance survives one act of terminal stupidity. Errors are also more predictable than successes. Nobody can list next decade's winning ideas, but February's twenty-eight failure modes have been constant for centuries. Avoiding the known and recurring beats predicting the unknown, on reliability alone.

And the competition is thinner. The pursuit of brilliance is crowded with ambitious people bidding up the price of cleverness. The pursuit of non-stupidity is nearly deserted, because it is unglamorous, invisible when it works (January 29), and pays in disasters that never happened. Munger's folk saying completes the thought: it's the strong swimmers who drown. The confident, the brilliant, the credentialed swim out too far.

Ask yourself: Will this year's results improve more from one brilliant addition, or from deleting my two most repeatable stupidities? Name the two.

06 · Every page

All 366 pages

Every title in the book, by date. Each date is its own link, so you can send someone straight to the page they need before a decision.

January · The Latticework

  1. January 1 Why Wisdom (read it above)
  2. January 2 The Latticework
  3. January 3 Invert, Always Invert
  4. January 4 Big Ideas from Big Disciplines
  5. January 5 The Man with a Hammer
  6. January 6 Know the Edge
  7. January 7 The Learning Machine
  8. January 8 Read Wide, Read Old
  9. January 9 Courts of the Ancients
  10. January 10 A Dear School
  11. January 11 First Principles
  12. January 12 All Models Are Wrong
  13. January 13 Chauffeur Knowledge
  14. January 14 Define What You Don't Know
  15. January 15 Simplicity
  16. January 16 The Thousand Nos
  17. January 17 Deserved Trust
  18. January 18 Deserve What You Want
  19. January 19 Darwin's Golden Rule
  20. January 20 Franklin's Project
  21. January 21 The Unbought Mind
  22. January 22 Sit Quietly
  23. January 23 Writing Is Thinking
  24. January 24 The Decision Journal
  25. January 25 Six Honest Serving-Men
  26. January 26 On Shoulders
  27. January 27 Measure, Then Judge
  28. January 28 The Bee's Method
  29. January 29 An Ounce of Prevention
  30. January 30 All Behavior Makes Sense
  31. January 31 The Checklist

February · The Machinery of Misjudgment

  1. February 1 The Quirks in Your Wiring
  2. February 2 Guilt by Association
  3. February 3 What Gets Rewarded Gets Repeated
  4. February 4 Whose Bread I Eat
  5. February 5 The Flattering Mirror
  6. February 6 Wishful Believing
  7. February 7 The Hobgoblin
  8. February 8 Seeing What You Look For
  9. February 9 Loss Hurts Twice
  10. February 10 The Default Setting
  11. February 11 Now Beats Later
  12. February 12 The Green Eye
  13. February 13 Everything Is Relative
  14. February 14 The First Number Wins
  15. February 15 Vivid and Recent
  16. February 16 The Missing Evidence
  17. February 17 The Returned Favor
  18. February 18 Liked into Agreeing
  19. February 19 The Herd
  20. February 20 The Uniform
  21. February 21 Stories After the Fact
  22. February 22 Because
  23. February 23 Gullible by Default
  24. February 24 Memory, the Revisionist
  25. February 25 Do Something
  26. February 26 Say Something
  27. February 27 Hot States
  28. February 28 Under Pressure
  29. February 29 The Lollapalooza

March · Guarding the Mind

  1. March 1 The Outside View
  2. March 2 Confident and Wrong
  3. March 3 I Knew It All Along
  4. March 4 The Silent Graveyard
  5. March 5 The Narrative Trap
  6. March 6 Everything Takes Longer
  7. March 7 Throwing Good After Bad
  8. March 8 The Halo
  9. March 9 It's the Situation
  10. March 10 Good Outcome, Bad Decision
  11. March 11 Cui Bono
  12. March 12 Earn Your Opinion
  13. March 13 Hunt Disconfirmation
  14. March 14 The Pre-Mortem
  15. March 15 The Official Dissenter
  16. March 16 Begin with the Base Rate
  17. March 17 Never Decide Depleted
  18. March 18 The Hot Letter
  19. March 19 Kill Your Darling
  20. March 20 Vaguely Right
  21. March 21 Storks Don't Bring Babies
  22. March 22 The Instructor's Illusion
  23. March 23 A Sample of One
  24. March 24 The Confident Beginner
  25. March 25 The Annual Demolition
  26. March 26 For Want of a Nail
  27. March 27 Keep Score of Your Calls
  28. March 28 Never Ask the Barber
  29. March 29 Franklin's Algebra
  30. March 30 Which Bias Is on Duty
  31. March 31 The Easiest Person to Fool

April · The Mathematics of Wisdom

  1. April 1 Money Begets Money
  2. April 2 The Rule of 72
  3. April 3 Wet Snow, Long Hill
  4. April 4 Degrees of Belief
  5. April 5 Expected Value
  6. April 6 Cap the Downside
  7. April 7 The Base Rate of Ambition
  8. April 8 Small Samples Lie
  9. April 9 The Mountains Bring Forth a Mouse
  10. April 10 Four Feet Deep on Average
  11. April 11 The Tails Wag the Dog
  12. April 12 The Weakest Link
  13. April 13 Too Many Branches
  14. April 14 A Million-to-One, Daily
  15. April 15 Streaks Happen
  16. April 16 Five Dollars Off What
  17. April 17 On Being the Right Size
  18. April 18 The Dose Makes the Poison
  19. April 19 The Vital Few
  20. April 20 Lose Half, Need Double
  21. April 21 First, Survive
  22. April 22 Bet Size Is the Decision
  23. April 23 The Insurance Mind
  24. April 24 Change Your Mind
  25. April 25 Trees and Scenarios
  26. April 26 A Bird in the Hand
  27. April 27 The Lever Breaks Both Ways
  28. April 28 When Correlations Go to One
  29. April 29 Prophecy Is a Risky Line
  30. April 30 The Numbers and the Story

May · Lessons from Darwin

  1. May 1 The Slightest Advantage
  2. May 2 The Algorithm
  3. May 3 Fit to the Environment
  4. May 4 The Red Queen
  5. May 5 Find the Empty Niche
  6. May 6 The Crowded Table
  7. May 7 Eight Years of Barnacles
  8. May 8 The Grinding Machine
  9. May 9 The Peacock's Tail
  10. May 10 Signals That Cost
  11. May 11 Mimicry
  12. May 12 Why Companies Go Extinct
  13. May 13 Long Calm, Sudden Storm
  14. May 14 Robust Beats Optimal
  15. May 15 Two Lungs
  16. May 16 The Tinkerer
  17. May 17 No Sudden Leaps
  18. May 18 Read the Fossil Record
  19. May 19 Runaway Fashion
  20. May 20 Species Without Predators
  21. May 21 Living Together
  22. May 22 The Parasite Check
  23. May 23 Island Species
  24. May 24 The Breeder's Eye
  25. May 25 The Environment Decides
  26. May 26 Change the Skin, Keep the Spine
  27. May 27 What Doesn't Kill You
  28. May 28 Eyes Evolved Forty Times
  29. May 29 The Sloth's Strategy
  30. May 30 Feathers Before Flight
  31. May 31 Grandeur in This View

June · Systems and Second-Order Effects

  1. June 1 And Then What
  2. June 2 The Spiral
  3. June 3 The Thermostat
  4. June 4 The Shower Faucet
  5. June 5 Stocks and Flows
  6. June 6 The Bottleneck
  7. June 7 Where to Press
  8. June 8 The Cobra Effect
  9. June 9 When Measures Become Targets
  10. June 10 Nails by Weight
  11. June 11 The Superpower, at System Scale
  12. June 12 Nobody Is in Charge
  13. June 13 Normal Accidents
  14. June 14 The Case for Slack
  15. June 15 Buffers
  16. June 16 Each User Makes It Better
  17. June 17 Critical Mass
  18. June 18 The Typewriter's Ghost
  19. June 19 The Cost of Leaving
  20. June 20 Believed into Being
  21. June 21 The Market Looks Back
  22. June 22 Five Whys Deep
  23. June 23 Work Expands
  24. June 24 Chesterton's Fence
  25. June 25 Profits Attract Their Own Assassins
  26. June 26 The Shared Pasture
  27. June 27 Drift
  28. June 28 Simple Rules, Rich Behavior
  29. June 29 The Invisible Hand
  30. June 30 Build the Machine

July · The Psychology of Money

  1. July 1 No One Is Crazy
  2. July 2 Twins Named Luck and Risk
  3. July 3 Enough
  4. July 4 The Moving Goalpost
  5. July 5 The Quiet Decades
  6. July 6 Getting vs Keeping
  7. July 7 A Few Pearls Pay for Everything
  8. July 8 The Highest Dividend
  9. July 9 The Man in the Car
  10. July 10 Wealth Is What You Don't See
  11. July 11 Save for No Reason
  12. July 12 Reasonable Beats Rational
  13. July 13 The Record Is Surprise
  14. July 14 Room for Error
  15. July 15 You Will Change
  16. July 16 The Fee, Not the Fine
  17. July 17 Different Games
  18. July 18 Pessimism Sounds Smart
  19. July 19 Appealing Fictions
  20. July 20 The Neighbor's Raise
  21. July 21 The Treadmill
  22. July 22 Autonomy Pays
  23. July 23 Rich vs Wealthy
  24. July 24 Spend Well
  25. July 25 Who Is the Purchase For
  26. July 26 Debt Narrows the Road
  27. July 27 The Price of Admission
  28. July 28 You Can't Shrink to Greatness
  29. July 29 Money and Marriage
  30. July 30 What Money Is For
  31. July 31 The Poorest Rich Man

August · The Investor's Temperament

  1. August 1 Mr. Market
  2. August 2 Price and Value
  3. August 3 Pieces of Businesses
  4. August 4 The Punch Card
  5. August 5 The Circle, Applied
  6. August 6 Temperament over IQ
  7. August 7 Sit-on-Your-Ass Investing
  8. August 8 Risk Is Not a Squiggle
  9. August 9 The Margin of Safety
  10. August 10 The Moat
  11. August 11 Cost Moats
  12. August 12 The Candy Test
  13. August 13 Nets and Hooks
  14. August 14 Cash Is What Counts
  15. August 15 The Institutional Imperative
  16. August 16 From Cigar Butts to Quality
  17. August 17 When to Sell
  18. August 18 Deaf to Thunder
  19. August 19 Time In, Not Timing
  20. August 20 Friction Eats Returns
  21. August 21 Know Thyself, Then Maybe Index
  22. August 22 Watching a Friend Get Rich
  23. August 23 Mad in Herds
  24. August 24 Fearful and Greedy
  25. August 25 Scuttlebutt
  26. August 26 Do the Reading
  27. August 27 Thesis Drift
  28. August 28 The Honest Yardstick
  29. August 29 The Sitting
  30. August 30 Luck, Skill, and Time
  31. August 31 Your Owner's Manual

September · The Manager's Craft

  1. September 1 The Superpower, Applied
  2. September 2 Trust as a System
  3. September 3 Integrity First
  4. September 4 The Edge of Abdication
  5. September 5 The Ratchet
  6. September 6 The Meeting Tax
  7. September 7 Measure Carefully
  8. September 8 Bad News First
  9. September 9 Praise by Name, Criticize by Category
  10. September 10 Eat Your Own Cooking
  11. September 11 The Bonus Boomerang
  12. September 12 Problems Don't Age Well
  13. September 13 Write Plainly
  14. September 14 Candor
  15. September 15 The Sandbaggers
  16. September 16 The Tone at the Top
  17. September 17 What You Tolerate, You Teach
  18. September 18 Firing Well
  19. September 19 A Business Any Idiot Can Run
  20. September 20 Flat Enough to Hear
  21. September 21 Palace Disease
  22. September 22 Mrs. B's Floor
  23. September 23 The Empty Calendar
  24. September 24 The Power of No
  25. September 25 The Front Line Knows
  26. September 26 Lose a Shred
  27. September 27 Fairness Beats Envy
  28. September 28 The Teaching Company
  29. September 29 The Ovarian Lottery at Work
  30. September 30 A Machine That Runs Without You

October · The Founder's Path

  1. October 1 First, Don't Die
  2. October 2 A Problem Worth Having
  3. October 3 Leave the Building
  4. October 4 One Word
  5. October 5 Handcraft First
  6. October 6 Ninety-Cent Dollars
  7. October 7 Cash Is Oxygen
  8. October 8 The Discipline of Scarcity
  9. October 9 What a Round Costs
  10. October 10 Edges Start Small
  11. October 11 The Faster Learner Wins
  12. October 12 One Thing, Done Well
  13. October 13 Strategy Is What You Refuse
  14. October 14 The First Ten
  15. October 15 The Founder's Odds
  16. October 16 The Story and the Mirror
  17. October 17 Obsess over Customers
  18. October 18 Kill Criteria
  19. October 19 The Courage to Charge
  20. October 20 Vesting and Other Prenups
  21. October 21 A Board That Helps
  22. October 22 Ledger A
  23. October 23 Patient Ambition
  24. October 24 The Weather Matters
  25. October 25 Burnout Is a Business Risk
  26. October 26 Beyond the Founder
  27. October 27 Prune the Product Tree
  28. October 28 Process, Just in Time
  29. October 29 The Second Act
  30. October 30 Built to Last or to Sell
  31. October 31 Your Extinction Events

November · The Not-To-Do List

  1. November 1 Consistently Not Stupid (read it above)
  2. November 2 Be Unreliable
  3. November 3 Learn Only from Yourself
  4. November 4 Go Down and Stay Down
  5. November 5 Fuzzy Thinking
  6. November 6 The Stupid Sin
  7. November 7 Carrying Coals
  8. November 8 The Self-Pity Card
  9. November 9 Ideology Cabbages the Mind
  10. November 10 Liquor, Ladies, and Leverage
  11. November 11 Chemicals
  12. November 12 Lie Down with Dogs
  13. November 13 The First Small Lie
  14. November 14 Win-Win or Walk
  15. November 15 Two Masters
  16. November 16 Overreach
  17. November 17 Pride Goeth
  18. November 18 Nine Women, One Month
  19. November 19 Complexity for Its Own Sake
  20. November 20 The Unforced Error
  21. November 21 Other People's Bubbles
  22. November 22 Too Good to Check
  23. November 23 Mistakes Travel in Packs
  24. November 24 Your Personal Not-To-Do List
  25. November 25 Seeing Is Not Observing
  26. November 26 Twisting Facts
  27. November 27 The Dog That Didn't Bark
  28. November 28 Eliminate the Impossible
  29. November 29 Reasoning Backward
  30. November 30 The Folly Review

December · The Good Life

  1. December 1 What Is in Your Power
  2. December 2 The Morning Rehearsal
  3. December 3 The Obstacle
  4. December 4 Wanting Less
  5. December 5 Time, the Only Coin
  6. December 6 Where I'm Going to Die
  7. December 7 Memento Mori
  8. December 8 Character Is Fate
  9. December 9 The Slow Build
  10. December 10 The Inner Scorecard
  11. December 11 Count What You Have
  12. December 12 The Even Keel
  13. December 13 Old Friends Compound
  14. December 14 The Biggest Decision
  15. December 15 The First Wealth
  16. December 16 Work You'd Do Free
  17. December 17 The Golden Mean
  18. December 18 Cheap Joys
  19. December 19 Dinner with the Dead
  20. December 20 The Nightly Audit
  21. December 21 The Best Revenge
  22. December 22 The Examined Year
  23. December 23 Teach to Learn Twice
  24. December 24 Presence over Presents
  25. December 25 The Gift of Enough
  26. December 26 Give It Away
  27. December 27 Old Age, Well Spent
  28. December 28 The Weapon of Laughter
  29. December 29 Nothing to Add
  30. December 30 What Compounds After You
  31. December 31 While We Are Postponing

07 · The quotations

Checked, not copied

Every epigraph in the book was checked against a primary source before inclusion: the original text, the original letter or speech, the shareholder letter on the company's own site, or a scholarly edition. Where a beloved quotation could not be verified, it was left out rather than hedged. Proverbs and sayings are labeled as what they are, the property of nobody in particular.

Five famous lines you may expect to find are corrected instead of repeated.

  • The line about the survival of "the most adaptable to change," universally attributed to Darwin, appears nowhere in Darwin. It is a 1963 paraphrase by management professor Leon Megginson.
  • "It is not enough to be busy; so are the ants" is a misquotation. Thoreau's 1857 sentence to H. G. O. Blake reads "It is not enough to be industrious; so are the ants. What are you industrious about?"
  • "It is better to be vaguely right than exactly wrong" belongs to Carveth Read (1898), not Keynes.
  • "Price is what you pay; value is what you get" is credited to Ben Graham, because that is how Buffett presents it in his 2008 shareholder letter.
  • "Lies, damned lies, and statistics" is given as what it is: a line Mark Twain attributed to Disraeli, with no Disraeli source ever found.

Charlie Munger is quoted twenty times and Warren Buffett fifteen, both at a deliberate cap. Benjamin Franklin, Charles Darwin, Francis Bacon, Seneca, Marcus Aurelius, and Aesop follow. Howard Marks, Ben Graham, and Morgan Housel appear a few times each. Almost everything else is public domain, quoted from public-domain translations, and Sources by Day at the back lists where all 366 come from.

08 · Where it came from

A daily dose

In 2003, a Swedish businessman named Peter Bevelin published a strange and wonderful book called Seeking Wisdom: From Darwin to Munger. He wrote it, he said, to learn: collecting in one place what Darwin, Munger, Buffett, and a hundred scientists and philosophers had figured out about why we misjudge, and how to do better. It became an underground classic among investors and founders, passed hand to hand like a map.

I have read many books on this subject and will read more. This one was born when I asked myself whether there was a book that would provide a daily dose of wisdom, the way a supplement provides a daily dose of vitamins. I could not find one, and in February 2024 I started writing it.

The daily format is old. Tolstoy spent his last years assembling A Calendar of Wisdom; a century later, Ryan Holiday's The Daily Stoic and Robert Greene's The Daily Laws proved the form still works. It works because wisdom is not a download. It is a practice, and practices run on repetition. You cannot read your way into better judgment in a weekend. You might, page by page, over a year, train your way into it.

Three promises. Every quotation was verified against a primary source before it went in. The ideas are credited: where a framing belongs to Munger, Buffett, Housel, Bevelin, or anyone else, their name is on it, and the connective tissue and the mistakes are mine. And nothing here is theory I haven't needed. I have spent my working life building software and companies, and every page is something I learned the expensive way or watched someone else pay for.

09 · About the author

About the author

Nasser Ghanemzadeh

I'm Nasser Ghanemzadeh. 17+ years building products and companies across AI, SaaS, and fintech. Former CEO and CPO at Nivo (acquired, 200K+ users), Founding Head of Product at Pangouan, founder and first managing director of Finnova, and co-founder of the Iran Startups community. Currently building Vectig solo with Claude Code and running the FDE Sprint for founder-led B2B SaaS teams.

I have been the founder watching runway and the manager building the machine. Finnova, a coworking space and accelerator, showed me the ecosystem from the investor side. The three readers in this book are three jobs I have held or sat across the table from.

More on the home page. Also by Nasser: Forward Deployed AI Engineering and Founder Mode.

10 · Read it

Read November free

Join the newsletter and the November sampler lands in your inbox: the introduction, all thirty days of The Not-To-Do List, a template for your own not-to-do list, the decision journal, and the sources at the back. The whole book is out now on Kindle, in paperback, and in hardcover.

You'll also get the newsletter. One email a week, easy unsubscribe.

FAQ

What is Daily Wisdom?

A year-long course in not fooling yourself. 366 one-page meditations for founders, investors, and managers, in the mental-model tradition of Charlie Munger and Peter Bevelin. Each page holds a verified quotation, a short essay, and one question or action to carry into the day.

Who is it for?

Operators who decide for a living: founders watching runway, investors watching themselves, managers building machines that run without them. The three jobs share one craft, making decisions under uncertainty with other people's trust at stake, and the pages rotate among them.

How is each day structured?

Three parts on one page. A quotation, checked against its primary source. An essay of about 250 words. A closing prompt, either a question to sit with (Ask yourself) or a small action to take (Try this). Reading the page takes three minutes.

What do the twelve months cover?

January builds the latticework of mental models. February and March cover the psychology of misjudgment and its antidotes. April is the mathematics of wisdom. May reads business through Darwin. June is systems and second-order effects. July is the psychology of money, August the investor's temperament, September the manager's craft, October the founder's path. November is the not-to-do list. December asks what all of it is for.

Is it out, and in what formats?

Yes. The Kindle edition came out on October 6, 2026, and the paperback and hardcover are on Amazon too. The print editions run 399 pages at 6 by 9 inches. A free sampler, the whole month of November with the not-to-do list and decision journal templates, goes to anyone who joins the newsletter.

Is there a list of every day in the book?

Yes. All 366 titles are on this page, month by month, under All 366 pages. Each date has its own link, so you can send someone straight to the page on, say, the Cobra effect (June 8) or the pre-mortem (March 14).

How long is it?

366 meditations, one per page, about 104,000 words. The print edition runs 399 pages at 6 by 9 inches. Read one page a day, or raid it before a decision.

Are the quotations real?

Yes. Every epigraph was checked against a primary source: the original text, letter, or speech, or the shareholder letter on the company's own site. Where a beloved quotation could not be verified, it was left out. Five famous misattributions are corrected in the book rather than repeated.

Do I have to start on January 1?

No. Start on today's date, or anywhere. The year is a circle and you will pass every page eventually. Cross-references point back to the day where an idea was built; ignore them on a first pass.

Is this investment advice?

No. The book is for general education. It is not investment, legal, tax, or medical advice, and no reader should act on it without consulting qualified professionals.

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