Bus stops are far more interesting and useful places to have art than in museums. Graffiti has more chance of meaning something or changing stuff than anything indoors. Graffiti has been used to start revolutions, stop wars, and generally is the voice of people who aren't listened to. Graffiti is one of those few tools you have if you have almost nothing. And even if you don't come up with a picture to cure world poverty you can make somebody smile while they're having a piss.

One Original Thought is worth 1000 Meaningless Quotes.

Speak softly, but carry a big can of paint.

I used to tell everyone I met to be an artist..... I don't do that any more.

It's a very frustrated feeling you get when the only people with good photos of you work are the police department.

I don't know if street art ever really works indoors. If you domesticate an animal, it goes from being wild and free to sterile, fat and sleepy. So maybe the art should stay outside.

When he time comes to leave, just walk away quietly and don't make any fuss.