"Picasso was telling Madame C-- that he could paint anywhere and anyhow. That nothing in the world could stop him. That even if he were imprisoned, he would draw on the dust-covered prison walls and on the floor, with his fingers dripped in his own spit. He said he could paint then and there if he wanted to, or if he felt like it."
January 1, 1970
https://en.wikiquote.org/wiki/Pablo_Picasso