Mrs. Patrick (Beatrice Stella Tanner Campbell) Campbell, letter to George Bernard Shaw (August 13, 1912), Alan Dent, ed., Bernard Shaw and Mrs. Patrick Campbell: Their Correspondence (1952), p. 32. Since this was in quotation marks in the letter, it may have been her own version of the familiar lines, "Laugh, and the world laughs with you; / Weep, and you weep alone." These are the first two lines of Ella Wheeler Wilcox's poem, "Solitude," first published in 1883 in her Poems of Passion and widehttps://en.wikiquote.org/wiki/Sleep