Billionaire Memo
Painted portrait of Ray Kroc Ray Kroc · set in the movement 9 memos drawn
quoted verbatim

The Principals · Jewel XIV of XXI

Ray Kroc

Built McDonald's into a global franchise empire.

Calibres
Grinding It Out
Jewels set
9 memos drawn to date
Most recent
March 2026

Drawn from Kroc

All memos →
Ref. 266 · deep dives

How 4 Billionaires Lead When Everything Is Falling Apart

Grinding It Out, Shoe Dog: A Memoir by the Creator of Nike, What I Know for Sure, Berkshire Shareholder Letters

Power reserve 13 min
Ref. 157 · deep dives

How 4 Billionaires Make Decisions When Nobody Knows What Happens Next

Onward, Grinding It Out, Losing My Virginity, How to Win at the Sport of Business

Power reserve 13 min
Ref. 163 · versus

Ray Dalio vs. Ray Kroc: Reading the World’s Patterns vs. Grinding Until the Opportunity Arrives

Principles for Dealing with the Changing World Order, Grinding It Out

Power reserve 4 min
Ref. 243 · deep dives

What 4 Billionaires Actually Mean by Work Ethic

Principles for Navigating Big Debt Crises, Pour Your Heart Into It, Grinding It Out, Direct from Dell

Power reserve 13 min
Ref. 88 · versus

Warren Buffett vs. Ray Kroc: Waiting for the Perfect Pitch vs. Grinding Through the Miss

Berkshire Shareholder Letter 1999, Grinding It Out

Power reserve 4 min
Ref. 65 · versus

Michael Bloomberg vs. Ray Kroc: Betting Early vs. Grinding Late

Bloomberg by Bloomberg, Grinding It Out

Power reserve 5 min
Ref. 57 · deep dives

How 4 Self-Made Billionaires Handle Failure — And Why Their Approaches Are More Different Than You Think

Grinding It Out, Principles: Life and Work, Onward, The Art of the Deal

Power reserve 11 min
Ref. 14 · quick takes

Ray Kroc Didn’t Start Until 52

Grinding It Out

Power reserve 2 min
Ref. 21 · versus

Sam Walton vs. Ray Kroc: Compete From Day One vs. Grind Until Your Moment Arrives

Made in America, Grinding It Out

Power reserve 6 min

Their calibres in the library

Cal. 001 Grinding It Out 1 memos drawn

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