It was Jann Wenner, former Rolling Stone owner/editor, who said that he only wanted to write about "philosophers of rock ’n’ roll" for a book he wrote called "The Masters".

You know, Joni was not a philosopher of rock ’n’ roll. She didn’t, in my mind, meet that test. Not by her work, not by other interviews she did. The people I interviewed were the kind of philosophers of rock.

• "Jann Wenner Defends His Legacy", web.archive.org