Source, in full
Attributed by Banksy on Instagram (October 6, 2018): "The urge to destroy is also a creative urge" - Picasso. This was actually written by anarchist philosopher Mikhail Bakunin in his essay "Reaction in Germany," in 1842.
More quotes by Pablo Picasso
For a long time I limited myself to one color — as a form of discipline.
When Matisse died, he left me his Odalisques 'as a legacy', he proclaimed.
Attribution
Quote text and notes from Wikiquote: Pablo Picasso (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.