
The Psychology of Money
Morgan Housel
Morgan Housel's 20 short lessons on why behavior, not intelligence, decides how well people do with money. For anyone who wants a calmer, more durable approach to saving and investing.

1926 · 144 pages
George S. Clason's classic parables, set in ancient Babylon, about saving a tenth of what you earn, investing with care and getting out of debt. For anyone who wants simple, memorable money rules.
Through parables set in ancient Babylon, Clason teaches that a part of all you earn is yours to keep. Arkad, the richest man in the city, learns from a moneylender to save at least one tenth of his income. He then learns to put those savings to work, to take advice only from experts and to protect his principal. His seven cures for a lean purse and the five laws of gold spell out the method: save, control spending, invest carefully, own your home, plan for the future and keep improving your skills. Other stories teach caution in lending, determination in repaying debt and pride in hard work.
This is the secret Algamish the moneylender gives to Arkad, a young scribe. Most people pay the baker, the tailor and the landlord, but never pay themselves. Algamish tells Arkad to keep at least one tenth of everything he earns, no matter how little he makes. Over years, those savings become a base that can grow. Clason makes this rule the foundation of every other lesson in the book.
Arkad loses his first year of savings when he gives it to Azmur, a brickmaker, to buy jewels from Phoenician traders. The jewels are worthless glass. Algamish asks why Arkad trusted a brickmaker on jewels and tells him to seek advice from people experienced in the thing they are advising on. The fourth and fifth laws of gold repeat the point: gold slips away from owners who invest in what they do not understand.
Saving alone is not enough. On his second try, Arkad spends the earnings from his savings on feasts. Algamish tells him that the gold his savings earn must also be put to work, so that it can earn more. Algamish describes each coin the savings earn as a child of the gold that can also earn. This is an early, plain description of compounding, and it is the third cure for a lean purse.
Arkad teaches a class of one hundred men over seven days, one cure each day. Start thy purse to fattening (save a tenth). Control thy expenditures. Make thy gold multiply. Guard thy treasures from loss. Make of thy dwelling a profitable investment. Insure a future income. Increase thy ability to earn. Together they form a full plan: save, budget, invest, protect, own a home, prepare for old age and keep learning.
In the second cure, Arkad warns that what people call necessary expenses will always grow to equal their income unless they resist. Many of these so-called needs are really wants. He advises budgeting so that you pay for real necessities and some chosen pleasures, while never touching the saved tenth. This idea explains why many people earn more over time but still feel they have nothing left at the end of the month.
Rodan the spearmaker receives fifty pieces of gold and asks Mathon the gold lender whether to lend it to his sister's husband. Mathon shows him a box of tokens left by past borrowers and explains which loans were repaid and which were lost. Lend only to people with a clear ability to repay, preferably with security, and do not let affection override judgment. Protecting principal comes before seeking a return.
Dabasir the camel trader tells how he ran from his debts and ended up sold as a slave in Syria. He realized he had the soul of a slave, running from problems instead of facing them. He escaped, returned to Babylon and paid back every creditor. His clay tablets record a repayment plan: save one tenth, live on seven tenths and use two tenths to pay creditors fairly. Facing debt with a plan restores self-respect.
In a discussion at the Temple of Learning, Arkad and a group of citizens share stories of chances they missed by waiting. One man meant to buy a flock of sheep at a good price but delayed overnight and lost the deal. They conclude that procrastination is the enemy of fortune. Opportunity comes to many people, but only those who act on it in time benefit. Clason links good luck to readiness and decisiveness.
“A part of all you earn is yours to keep.”
“Better a little caution than a great regret.”
“Where the determination is, the way can be found.”
George S. Clason was an American businessman and publisher. Starting in 1926, he wrote a series of pamphlets about thrift and financial success, set in ancient Babylon. Banks and insurance companies gave them away to customers. The pamphlets were later collected into this book.
Clason chose Babylon because he saw it as the richest city of the ancient world, built by people who used money wisely. The book is a set of linked parables. Each chapter tells a story about merchants, craftsmen, lenders and slaves, and each story carries one rule. The language is deliberately old-fashioned, with "thy" and "thou," which makes the rules easy to remember.
The core message fits in one line: a part of all you earn is yours to keep. Save at least one tenth of your income, make that money work for you, protect it from loss and keep learning to earn more.
The book opens with Bansir, a chariot builder, and his friend Kobbi, a musician. Both have worked hard all their lives, yet they have nothing saved. They are puzzled, because a childhood friend of theirs, Arkad, is now the richest man in Babylon. They decide to ask him how he did it.
Arkad tells his story. As a young man, he was a scribe who carved records on clay tablets. A wealthy moneylender named Algamish needed a long law copied quickly. Arkad worked through the night in exchange for Algamish's secret of wealth. The secret was: a part of all you earn is yours to keep. Algamish told him to keep at least one tenth of everything he earned. He argued that people pay everyone else (the baker, the tailor, the landlord) but forget to pay themselves.
Arkad's early attempts went wrong in ways that teach their own lessons:
Over time, Arkad learned to save, invest carefully and let his money grow. Algamish later trusted him with a share of his own affairs. Arkad tells Bansir and Kobbi that the method is open to anyone who will follow it with discipline.
In the best-known chapter, the king of Babylon asks Arkad to teach his methods so that more citizens prosper. Arkad teaches a class of one hundred men over seven days. Each day covers one cure for a lean purse:
Meet the Goddess of Good Luck. At a discussion in the Temple of Learning, Arkad leads a group that asks how to attract luck. They tell stories of chances they missed because they delayed. One man wanted to buy a flock of sheep at a good price but waited until morning, and someone else bought it. The group agrees that procrastination is the enemy of fortune. Luck, Arkad concludes, favors people who act on opportunity.
The Five Laws of Gold. A caravan leader named Kalabab tells the story of Nomasir, Arkad's son. Arkad gave Nomasir a bag of gold and a clay tablet with five laws, and sent him out to prove himself. Nomasir lost the gold to bad bets and dishonest schemes. He then took a job, followed the laws and returned years later with far more than he started with. The laws say that gold:
The Gold Lender of Babylon. Rodan, a spearmaker, receives fifty pieces of gold from the king. His sister wants him to lend it to her husband so he can become a merchant. Rodan asks Mathon, a gold lender, for advice. Mathon opens a box of tokens that borrowers left as security and tells the story behind each. The lesson is to lend only to people who have a clear ability to repay, often with security, and never to let affection replace judgment. Mathon sums it up: better a little caution than a great regret.
The Walls of Babylon. An old warrior named Banzar guards a gate while the Assyrians attack. The great walls hold, and the city survives. Clason uses the walls as a symbol of protection: people need defenses, such as savings and insurance, against the misfortunes that will come.
The Camel Trader of Babylon. A young man named Tarkad is hungry, broke and avoiding the people he owes. He meets Dabasir, a prosperous camel trader, who tells his own story. As a young man, Dabasir lived beyond his means, borrowed from friends and ran away from his debts. He was captured and sold as a slave in Syria. There he realized he had the soul of a slave: he had been running from his problems instead of facing them. He escaped, crossed the desert and returned to Babylon, determined to pay back every debt and become a free man in spirit as well as in law. His lesson: where the determination is, the way can be found.
The Clay Tablets from Babylon. This chapter shifts to the modern era. A fictional archaeology professor in England translates tablets that record Dabasir's plan for repaying debt. The plan divides income into three parts:
The professor and his wife try the plan and pay off their own debts while starting to save. The chapter shows that the ancient rule still works in a modern household.
The final story, The Luckiest Man in Babylon, follows Sharru Nada, a wealthy merchant, and Hadan Gula, the grandson of his old partner, Arad Gula. Hadan Gula despises work and wants to live on his inheritance. Sharru Nada tells him how he and Arad Gula rose from slavery. Sharru Nada learned from a fellow slave to love work, earned the trust of his master and saved enough to buy his freedom. The lesson is that hard work, done with pride, is a friend that opens doors. Wealth that is not earned through useful work does not last.
The book is nearly a century old, and some advice reflects its time. The claim that owning a home is always a good investment ignores costs, location and market risk. The guidance on investing is general and says nothing about modern tools such as low-cost index funds, diversification or inflation. The setting is a romanticized version of Babylon, not an accurate history. Some readers also find the stories about slavery uncomfortable, because they treat it as a setting for personal lessons rather than as an injustice. The core habits (save first, spend less than you earn, avoid schemes you do not understand) remain widely accepted.
Read it if you want simple, memorable rules for saving and staying out of debt, or if you are just starting to manage your own money. It is short, and the parables work well for teenagers and adults who find standard personal finance books dry.
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Question 1 of 5
What share of income does Algamish tell Arkad to keep?
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