What do you know about power? Anypony can cast spells, but what does it mean to be truly powerful? I'll be the first to tell you that power means nothing if you don't how to use it--why you use it. True power isn't some fancy spell or lost magic only you can use; it's the heart you put in any action you do--not just magic. Be the best you can be at all times. That is when you truly shine, and then, nopony can match you.
Picture source: http://awsdemlp.deviantart.com/art/MLP-Overload-321245817