Warren Buffett Knows It. Reinvesting in Your Business Can Lead to Huge Growth. — entrepreneur.com

Warren Buffett’s investment career started early and in a somewhat unexpected manner. One of his early investments was in high school, when he and a friend bought a used pinball machine for $25 and installed in a barbershop. The game proved to be popular with the barbershop’s clientele, so the entrepreneurial duo reinvested their profits to buy more pinball machines. In time, they had eight machines in several shops.

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