'"One can pay back the loan of gold, but one dies in debt to those who are kind."' Behind these words lives the name of Nurse Edith Louisa Cavell, gallant British war nurse of World War I, who gave her life for her country. It was her statue near Trafalgar Square, London, bearing her famous words, "Patriotism is not enough," that inspired Percival Cochrane, who served with the RAAF in England during the war, to write a play dedicated to this heroic woman.'
Source: 'The Eternal Flame', Sun, 30 May 1947, p.12.