"The works of God are beautiful and great; let us, therefore, with all our might, strive to know them."

"I much prefer the sharpest criticism of a single intelligent man to the thoughtless approval of the masses."

"My goal is to show that the heavenly machine is not a kind of divine living being but similar to a clockwork insofar as all the manifold motions are taken care of by one single absolutely simple magne…"

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

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