Fast, easy answers are not Jesus' style. He seems far more fond of giving people a challenge that's personal to them, something that gives them the opportunity to be transformed if they accept it. This man who has kept all the law but cannot sell his possessions is no exception. Jesus sees him for who he is, sees what stands in the man's way of drawing closer to God, and challenges him with it, and leaves the man speechless. What would he challenge us with? Would it be something as hard as that?