Art vs opinion

What Roy said:

The thoughts and instincts of great artists are distilled in their works. If these works are more universal and accessible than their makers' ideas, it's because making art is like solving an equation: speaking very generally, you start with a problem, and have to make the thing "come out" so that it explains itself after you've walked away from it. That burns away a lot of dross – usually the stuff that you can better explain by merely talking.