Disney_Duster: Regarding Pixar, I don't think they are saying that they are more special than others.
Here's yet another lengthy explanation about what I think...
Disney and Pixar have two very different philosophical beliefs. Disney is idealistic. Their movies often portray the belief that good intentions will always yield the ultimate reward, that evil will be defeated by good, and that everything can happen if you believe in it. Pixar's philosophy is realism, and I don't mean in the visual sense. By realism, I mean that their stories deal with realistic issues with consequences and events that feel real to an extend.
I personally believe that people often confuse pessimistic insight with realism. Pessimism is about looking at the negatives and coming up with a negative conclusion, while realism is looking at things how they really are, whether they are good or bad.
The lines you mentioned are, in my opinion, realistic thoughts. When Dash says that by saying everyone is special it means that no one is he means that we often try to make sure EVERYONE is great just to please them rather than making sure their efforts are worth the recognition. OK, this might get confusing, but stay with me...
Yes, everyone is special, unique and talented in their own way. But that doesn't mean that EVERYONE should be rewarded for it. They need to earn it and prove themselves to the world. Imagine if at the Oscars EVERYONE that was nominated won an award, or at the Grammys, or the Emmys, or the Tonys. Those awards are about rewarding excellence in their respective fields. If everyone were to get an award, that means that even the mediocre talent gets recognized. If people want to become the best in their field, they often need to fail before their talents are fully recognized by the world.
To put it in simpler terms, what's the point of being the best that you can be and put effort into growing into a better person if you will be grouped with the other people and be called "the best"?
That's why Dash says that by calling everyone special it means no one is. It is a statement about how we often are afraid of insulting people when applauding their efforts, rewarding everyone instead of giving credit where credit is due.
On another note, you have to remember that when Dash said that he was at an emotional low in the story due to how he was forced to restrain his powers and not be the boy he really is. It could also be interpreted as pessimistic insight caused by the events in the story. After all, he was OK with being in second place just so he doesn't have an unfair advantage over the other runners.
Now, about the artist comment, once again, that's realistic insight. It's true, not EVERYONE can become a great artist. To do that it takes a lot of hard work, perseverance, money, time, patience and the will to keep pushing forward. Many people give up halfway to the finish line and forget about the dream, hence why not everyone can become a great artist. But what Anton Ego says about how a great artist can come from anywhere is that all of us have the basic instinct of pursuing goals in life, regardless of social background, race, gender, political or religious beliefs, that none of those things should be key factors in finding the next great talent.
Take, for example, the famous Susan Boyle, the woman that came from a small village and everyone deemed too uncultured BEFORE she even sang...
http://www.youtube.com/watch?v=RxPZh4AnWyk
Once she sang, though, the world was enthralled like crazy by her talents. At that point, it didn't matter who she was or where she came from. What mattered is that she had an amazing talent to share with the world.
THIS is what Anton Ego is talking about, that great talent CAN come from anywhere. But what pushes that dream forward is the will of the person to pursue it, and many just can't do that. It doesn't matter if you have all the dreams of the world, if you don't want to pursue them then you can't be "special".
Again, this is what I deem realistic. Pixar stories are realistic, save for a couple of them that mix realistic with idealism, like Cars. It is realistic when the new highway took drivers away from Radiator Springs, and it quickly became to crumble in terms of economic stances. It was idealistic, however, when it sprung back to life thanks to Lightning McQueen being great at the Piston Cup.
In fact, I would deem their movies as being "Realistic idealism", where the ideal view of the world is formed out of the reality the characters face. And that to me is a healthy form of thinking.