"See, I cast the die, and I write the book. Whether it is to be read by the people of the present or of the future makes no difference: let it await its reader for a hundred years, if God himself has s…"

"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…"

"The heavenly motions are nothing but a continuous song for several voices, perceived not by the ear but by the intellect."

"The celestial machine is not like a divine animal but like a clockwork."

"Some of what these pamphlets [of astrological forecasts] say will turn out to be true, but most of it time and experience will expose as empty and worthless. The latter part will be forgotten [literal…"