'4-Hour Workweek' author credits a simple 3-step exercise with putting him on the path to success

Before he became famous for his 2007 bestseller "The 4-Hour Workweek," Tim Ferriss was an entrepreneur struggling to make sense of what he wanted from life. There was a moment in 2004 when he reached a turning point, he said in the TED Talk he gave this April in Vancouver. That year, a friend died of …