Dear Anita [Anita Pollitzer], don't forget Mary Cassatt [as one of her inspirations] — and I am not sure that your new paragraph will hold water [Anita had sent her a chapter of the biography she was writing about Georgia] — We [artists] probably all derive from something — with some it is more obvious than with others — so much so that we can not escape a language of line that has been growing in meaning since the beginning of lines.

In a letter to Anita Pollitzer, Abiquiu, New Mexico, January 17, 1956; as quoted in The Complete Correspondence of Georgia O'Keeffe & Anita Pollitzer, ed. Clive Giboire, Touchstone Books, Simon & Schuster Inc., New York, 1990, p. 305