Warren Buffet is considered one of the most famous investors of all time because of his extreme amount of financial success over the course of his life and the authority he has held in many worldwide companies. Buffet is an American billionaire and CEO of Berkshire Hathaway, which is a holding company that owns other companies such as Geico, Duracell, and Dairy Queen. Needless to say, there's a lot the rest of us can learn from him, even if our only goal is saving for retirement.