Passion

Excellence is the key. Everyone pursues a certain talent or love for something, someone, or reason. Its at that point where no one can understand the compassion you show for this "thing."

And thats the wonderful idea behind it. It's a secret within yourself and its something that no one can ever take away from you. That is a lesson learned. You cannot give up, hinder, or lose interest because of other people. It will always happen. But that's an even better reason to keep on pursuing it.