What does Martin Scorsese think of Christopher Nolan?

Just wondering if there have been instances where Martin Scorsese said or commented on anything about or done by Chris Nolan. I realize he mentioned a few directors in the letter to his daughter, and he wasn't one of them; but any other instance of talking about Christopher Nolan and his work? I'm quite fascinated by what directors think about other directors via /r/movies http://ift.tt/2eZt4sI