"For a long time I was restless. Now, however, behold how through my effort God is being celebrated in astronomy."

"I have been tormented by the desire to understand the celestial motions."

"I am stealing the golden vessels of the Egyptians to build a tabernacle to my God from them, far far away from the boundaries of Egypt. If you forgive me, I shall rejoice; if you are enraged with me, …"

"Provide ship or sails adapted to the heavenly breezes, and there will be some who will not fear even that void [of space]… . So, for those who will come shortly to attempt this journey, let us establi…"

"God gives every animal the means of saving its life—why object if he gives astrology to the astronomer?"