Alfonso el Sabio on the Cosmology

Alfonso el Sabio portrayed in the Libro des Juegas (ca. 1290)

Si hubiera estado presente en la Creación, habría dado algunas indicaciones útiles.

Had I been present at the Creation, I would have given some useful hints for the better ordering of the Universe.

–Alfonso X de Borgoña, el Sabio, attributed saying during a discussion of Ptolemaic cosmology (ca. 1280)