Rick Rule, CEO and President of Sprott U.S. Holdings, is a legend among mining speculators-and for good reason, having generated spectacular profits for himself and his clients throughout the years. Here, in an interview for PrivatePlacements.com, Mr. Rule digs into his longstanding dedication to private placements investing. He breaks down his tremendously successful speculation philosophy, and shares key nuggets of wisdom gleaned from more than four decades investing in the mining space.