Warren Buffett is the world's seventh richest man with a net worth of $148.4 billion. Before the stock market opened today, he was worth about $1 billion less. While that's not going to have him leapfrog up the list,

Investor Warren Buffett bought his first stock at age 11 and purchased his first lot of real estate at 15. Today, the Oracle of Omaha has a net worth of $147 billion and a reputation for

Although the great investor Warren Buffett said that it's better to "learn from the other guys' mistakes" rather than make his own, the co-founder, chairman and CEO of Berkshire Hathaway has made