One day I was 12 years old and broke. Then Grandma gave me Grandpa's old riding lawnmower. I set out to mow some lawns. More people wanted me to mow their lawns. And more and more. . . . One client was Arnold the stockbroker, who offered to teach me about "the beauty of capitalism. Supply and Demand. Diversify labor. Distribute the wealth." "Wealth?" I said. "It's groovy, man," said Arnold. If I'd known what was...
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