They exist without permission. They are hated, hunted and persecuted. They live in quiet desperation amongst the filth. And yet they are capable of bringing entire civilisations to their knees. If you are dirty, insignificant and unloved then rats are the ultimate role model.

Banksy (b. 1974?) England-based pseudonymous street artist, political activist, film director

Wall and Piece, “Rats” (2005)
    (Source)