So far as hypotheses are concerned, let no one expect anything certain from astronomy, which cannot furnish it, lest he accept as the truth ideas conceived for another purpose, and depart from this study a greater fool than when he entered it.
Nicolaus Copernicus, Georg Joachim Rhäticus (1971). “Three Copernican treatises: the Commentariolus of Copernicus, the Letter against Werner, the Narratio prima of Rheticus”, Octagon Press, Limited
