Gilligan: “Professor, I didn’t think you believed in all that wishing stuff.”

Professor:  “Oh, I don’t. It’s entirely unscientific, absolutely absurd, violates every rule of common sense and it’s completely contrary to the rules of logic and intelligence… But just in case!”

From the episode “Three to Get Ready” of Season 1 of Gilligan’s Island, which originally aired on April 17, 1965.