The gravestone bears a quotation from Shakespear's King Lear, "Men must endure their going hence." Warren had written, "...there was a Shakespearean calendar hanging on the wall of the room where she [our mother] died, and my father preserved for the rest of his life the leaf of that day, with its quotation: 'Men must endure their going hence'." - W.H. Lewis, "Memoir," in Letters of C.S. Lewis.