The Optimist Invents the Airplane and the Pessimist the Parachute

George Bernard Shaw? Gladys Bronwyn Stern? W. H. H. MacKellar? Gil Stern? Mack McGinnis? Dear Quote Investigator: An entertaining quip contrasts the attitudes of the dreamer and the worrier: Optimists invent airplanes; pessimists invent parachutes. This saying has been attributed to Irish playwright George Bernard Shaw and English author Gladys Bronwyn Stern. Would you please …