Agnes Martin: With My Back to the World

　　“My paintings are not about what is seen.
　　 They are about what is known forever in the mind.”
　　 – Agnes Martin
　　 “'‘I’m very careful not to have ideas, because they’re inaccurate,’ the artist Agnes Martin says in Mary Lance’s touching documentary about her, but it’s a lie. Ms. Martin was full of ideas, and she dispenses them engagingly in the course of the film… She talks about her ...