The Climb
Reinvest Every Toll Into the Next Doorway.
The first doorway buys the second. The second buys the third.
The money your doorway throws off is not for spending - not yet. It's seed. Every toll you collect can be planted into building or buying the next doorway, and the next, until you don't own one position in one market but a portfolio of them. This is how a single good middleman business becomes an empire of them: compounding, doorway upon doorway.
The operator who consumes his tolls stays a one-doorway operator forever. The one who reinvests turns each position into the down payment on the next. Stay hungry, keep planting, and let the building you've climbed fund the next building entirely.
Plant your profits into the next doorway. Compound positions, don't consume them.
This is one of 48 laws from MIDDLEMAN - The 48 Laws of the Money in the Middle. Read it in full to climb the whole building, floor by floor.