rare · Money & Decisions · PRO deck · first card free
Warren Buffett's shareholder letters
Warren Buffett · 1979. In the app: Letters to Shareholders, Six.

About this deck
For decades Warren Buffett has explained his thinking in plain annual letters to Berkshire Hathaway shareholders. The letters are less about clever stock picks than about avoiding the mistakes that ruin investors: overpaying, taking ruinous risks, chasing forecasts and measuring yourself against the crowd. This deck pulls out six of his durable ideas: margin of safety, his two rules about losing money, time in the market, the inner scorecard, skepticism toward forecasts and the slow compounding of habits. After the deck you will be able to judge a financial or career decision by its downside first, ignore most market noise, and build habits that work in your favor over many years.
The 6 ideas
The Margin of Safety
Buy at a price that protects you from being wrong.
Margin of safety means buying something well below what you believe it is worth, so a mistake in your estimate does not sink you. Warren Buffett, following his teacher Benjamin Graham, treats this cushion as the foundation of sound investing.
Rule One, Rule Two
Don't lose money.
Warren Buffett's famous rule one is never lose money, and rule two is never forget rule one. It is a reminder that large losses are brutally hard to recover from, so protecting the downside matters more than chasing the biggest possible gain.
Time in Market, Not Timing
The market's short-term moves are noise.
Warren Buffett argues that trying to time short-term market moves is close to gambling, while owning good businesses for a long time is far more reliable. Prices jump around with mood in the short run, but over years they tend to follow real business value.
The Inner Scorecard
Measure yourself against your own bar.
The inner scorecard is Warren Buffett's idea of judging yourself by your own standards rather than by what others think. People with an inner scorecard stay steadier, because their sense of enough does not shift every time someone else gets ahead.
On Forecasting
Forecasters reveal more about themselves than the future.
Warren Buffett has long refused to predict markets, interest rates or the economy. He suggests forecasts reveal more about the forecaster's incentives than about the future. He prefers to focus on what is knowable now: a specific business, its prospects and its price.
The Compounding of Habits
Patterns of behavior become character.
Compounding habits is the idea that small daily behaviors build on each other like interest, until they quietly define who you are. Warren Buffett likes the line that habits feel light at first and become too heavy to break, so choose them early and carefully.
Test yourself
Two questions from the deck quiz. Pick an answer to see the explanation.
1. What is the margin of safety?
Show the answer
The gap between the price you pay and the value you believe is there. A wide margin means you don't lose even if your thesis is partly wrong. A narrow one means you must be right.
2. A founder wants to bet the entire treasury on one launch: 10x if it works, death if not. What does Rule One say?
Show the answer
Don't structure the bet so one failure ends the company. Rule one targets structure. There are usually other paths that keep the upside without risking total ruin.
