"There may be babblers, wholly ignorant of mathematics, who dare to condemn my hypothesis, upon the authority of some part of the Bible twisted to suit their purpose. I value them not, and scorn their …"

"The sphere is the most perfect of all figures, hence it is the form of the world."

"Having thus assumed the motions which I ascribe to the earth, I have, after long and careful investigation, finally discovered that, if the motions of the other planets be related to the revolution of…"

"For the motion of the earth is not a simple motion, but a composite of many motions."

"The Sun, as if seated on a royal throne, governs the family of stars which wheel around it."