Investing is a notoriously noisy industry, but Warren Buffett has always managed to cut through the clutter with his simple yet powerful advice. One of Buffett's most overlooked nuggets of wisdom is about focusing on the right type of business.

Warren Buffett's simple investment strategy has propelled Berkshire Hathaway to market-beating returns since 1965. Buffett has invested in over 100 different companies, including giants like Apple, Coca-Cola,

Perhaps that’s one reason stocks are selling off globally this morning. While most indexes in Asia and Europe remain near their all-time highs, there is broad-based but mild selling in all of them.