Why is Gone With the Wind titled Gone With the Wind?

Margaret Mitchell chose for her novel the title Gone With the Wind, which she based on a line in Ernest Dowson’s poem “Non Sum Qualis Eram Bonae sub Regno Cynarae,” published in 1891: “I have forgot much, Cynara! gone with the wind, / Flung roses, roses riotously with the throng / Dancing, to put thy pale, lost lilies out of mind[.]” The novel’s publisher wanted to use the title Tomorrow Is Another Day, which is derived from the novel’s final line, spoken by Scarlett O’Hara.