Utilize your financial knowledge, give your answer or opinion to the input question or subject . Answer format is not limited.

Is there any truth to the saying '99% of the world's millionaires have become rich by doing real estate'?
This quote has it almost backwards. Thomas J. Stanley's recent book (he's one of the duo who researched and wrote about The Millionaire Next Door) claims that the top occupation of millionaires is "business owner / self-employed" (28%).  "Real estate investor" is lumped in with "other" (9%), and if the ordering is correct in the list, it's no more than 2% of the total. (source)