“Keep on going, and the chances are that you will stumble on something, perhaps when you are least expecting it. I never heard of anyone ever stumbling on something sitting down.”

— Charles F. Kettering.

Charles Franklin Kettering (August 29, 1876 – November 25, 1958) sometimes known as Charles “Boss” Kettering was an American inventor, engineer, businessman, and the holder of 186 patents. He was a founder of Delco, and was head of research at General Motors from 1920 to 1947. Among his most widely used automotive developments were the electrical starting motor and leaded gasoline. In association with the DuPont Chemical Company, he was also responsible for the invention of Freon (R12) refrigerant. At DuPont he also was responsible for the development of Duco lacquers and enamels, the first practical coloured paints for mass-produced automobiles.