Buffett's own words, sorted into short lessons: how to judge a business, its managers, and its price.
That is Buffett's own test in the book. It kills short-term thinking and forces you to judge a share as a piece of a real business, not a blinking price.
If the plan depends on reselling to someone who will pay more tomorrow, it is not investing. Easy money and excitement are warning signs, not opportunities.
A business is worth the cash it will produce over the rest of its life. Follow the cash, distrust rosy forecasts and accounting jargon, and treat the market's quote as an offer, not a verdict.
Return on tangible invested capital reveals a business's true character. The best businesses turn every dollar invested in them into substantially more than a dollar of value.
A real moat - a strong brand, low costs, loyal customers - keeps competitors away, and it should widen a little every year. In commodity businesses, being the low-cost producer is all that matters.
The great earn high returns on capital behind a durable moat. The gruesome devour cash, demand that you be smart every day, and live in fast-changing industries - get into a good business rather than trying to look brilliant in a bad one.
The rest of this summary — and the one thing to do this week — is in the PDF.
Download the free PDFThe premise is in the opening line: 'I am a better investor because I am a businessman and a better businessman because I am an investor.' Peter Bevelin, author of Seeking Wisdom, selected Warren Buffett's own words from decades of Berkshire Hathaway letters and talks and arranged them into fifteen short lessons. Buffett endorsed the result in his 2011 shareholder letter, saying it sums up what he and Charlie Munger had been saying over the years about Berkshire's investment and operating principles.
The investing lessons start with a definition: investing means laying out cash now in order to get more cash back later; anything else is speculation. A business is worth all the cash it can be expected to produce over its remaining life, so the investor's job is to follow the cash, keep estimates rough and honest, and never confuse the market's price with that value. Price is what you pay; value is what you get.