growth in shooting

I've been asked a lot of times what separates a shooter who continues to become better, from shooter who stay the same.  The difference is that one understands that he never really learns anything.  He continues to learn every time he shoots.  His mind is always open, every time he fires, his mind is always ready to incorporate anything new that he learns.  Whereas the other had built himself up to a certain point and had learned the fundamentals but then he stop and don't retain the open-mindedness that will allowed him to grow and be better.