In the following video, Motley Fool financial analyst Matt Koppenheffer takes a question from a Fool reader, who asks, "Is there someone that follows Buffett's principles of investing that is not part of Berkshire Hathaway (BRK.A 0.25%) (BRK.B -0.04%)? Some protege of his that may have gone out on his own, but invests the way he learned from Buffett?"