“Funny sort of science! I guess they were pretty ignorant in those days.”
Robert A. Heinlein (1907–1988) American science fiction author
“Don’t go running down our grandfathers. If it weren’t for them, you and I would be squatting in a cave, scratching fleas. No, Bub, they were pretty sharp; they just didn’t have all the facts. We’ve got more facts, but that doesn’t make us smarter.”
A Tenderfoot in Space (p. 691)
Short fiction, Off the Main Sequence (2005)