LEELA: I know, I know, there’s no such thing as magic.
THE DOCTOR: Exactly! To the rational mind, nothing is inexplicable, only unexplained.
Doctor Who (1963-1989) British science fiction television series, original run (BBC)
14×05 “The Robots of Death,” Part 1 (1977-01-29) [w. Chris Boucher]
(Source)
