"You see, a document has use, whereas art is really useless. Therefore art is never a document, although it can adopt that style."

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What makes someone an artist? I don't think is has anything to do with a paintbrush. There are painters who follow the numbers, or paint billboards, or work in a small village in China, painting reproductions. These folks, while swell people, aren't artists. On the other hand, Charlie Chaplin was an artist, beyond a doubt. So is Jonathan Ive, who designed the iPod. You can be an artist who works with oil paints or marble, sure. But there are artists who work with numbers, business models, and customer conversations. Art is about intent and communication, not substances.

— Seth Godin