Warren Buffett

As a child, Buffett was already ambitious. As an enthusiastic and industrious carrier for The Washington Post he tried to cover more than one route simultaneously. He also made money by collecting and selling lost golf balls. Buffett's interest in finance was clear extremely early in life. He started playing the stock market with one of his sisters when he was 11. At 12, he was betting on horses, and by high school he had started a business (pinball machines) with a friend, which earned him $50 a week. Not only did he own a business by graduation, but he also had bought himself 40 acres of Nebraska farmland with his profit. [+]