Great Entrepreneurs

Warren Buffett

Berkshire Hathaway · Investing / holding company · 1941–2020s Intermediate

Featuring Warren Buffett, Charlie Munger, Benjamin Graham

Warren Buffett started investing at age 11, filed his first tax return at 13, and bought farmland before he graduated high school. He learned to hunt cheap "cigar butt" stocks under Benjamin Graham, then, pushed by Charlie Munger, evolved into something rarer. When everyone piled into dot-com stocks in the late 1990s and he looked foolish sitting it out, he held. The crash vindicated him, and he had the cash and the nerve to buy while others panicked.

For founders and operators, this case is about capital allocation as the highest-leverage skill in any organization, and the brutal honesty it requires about where you actually have an edge. It asks where your company is spending time, money, and attention outside its real circle of competence, and what fashion or fear is driving that drift. The way Buffett defined the edge tightly and defended it under pressure is the part the app keeps for you.

Topics
  • Warren Buffett
  • Berkshire Hathaway
  • Charlie Munger
  • Benjamin Graham
  • capital allocation
  • circle of competence
  • patience
  • investing

Frequently asked questions

Who is Warren Buffett and what is he known for?

Warren Buffett is the investor who built Berkshire Hathaway and is known for disciplined capital allocation, patience, and staying within his circle of competence. He started investing at age 11, filed his first tax return at 13, and bought farmland before graduating high school. He learned value investing under Benjamin Graham.

How did Warren Buffett's investing style evolve?

Buffett began by hunting cheap "cigar butt" stocks under Benjamin Graham, then, pushed by Charlie Munger, evolved toward buying high-quality businesses. He runs Berkshire Hathaway as a holding company that allocates capital across many businesses and investments. His discipline shows in defining his edge tightly and defending it under pressure.

Why did Warren Buffett sit out the dot-com boom?

When everyone piled into dot-com stocks in the late 1990s, Buffett stayed out because those companies fell outside his circle of competence, and he looked foolish for a while. When the crash came, he was vindicated and had the cash and the nerve to buy while others panicked. He defined his edge tightly and held to it under pressure.

What can founders learn from Warren Buffett?

The lesson is that capital allocation is the highest-leverage skill in any organization, and it demands brutal honesty about where you actually have an edge. Buffett looked hard at where time, money, and attention drifted outside his real circle of competence and refused to follow fashion or fear. CaseBook turns this into a move you apply to your own company, with an AI coach that reads your answer.

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