I love this! So much graffiti is cynical, sad, needy or just idiotic. This makes me smile and i wish I could go by it every day!
I believe that this is by "Banksy" a very well-known stencil/graffiti artist. I am particularly fond of this one --- we just don't listen to each other enough. How often are you just composing what you are going to say next?
I have developed an obsession with graffiti---not the "tags" or brilliantly colored creations you find here and there, but the simple statements that sometimes have great meaning and sometimes have no discernible meaning at all. I cannot claim to have been to original photographer on any of the pictures, and certainly not the original writer. I will, whenever possible acknowledge the site or person that brought me a particular nugget.