Always listen to the experts. They'll tell you what can't be done and why. Then do it.
Source: In Friendly Advice, ed. Jon Winokur, 1990.
-- Robert Heinlein, (Jul 7 1907-1988), US science-fiction writer; He was noted for his future history science fiction writing; wrote SF classics Space Cadet, Citizen of the Galaxy, and Starman Jones.