Graffiti

This week's challenge is 'GRAFFITI'. I didn't see any in London yesterday, but I knew I would be able to find some in Leith.  I think this quote (made up or taken from someone else I don't know) is rather good.

I think there is actually graffiti upon graffiti.  STUS appears all over the place.

Update: Apparently, this a Mexican proverb, taken and slightly altered from writing of a mid-20th century Greek poet.