"Perhaps there will be babblers who, although completely ignorant of mathematics, nevertheless dare to pass judgment on these things and, on the strength of some passage in Scripture, twisted to their …"

"For I am not so enamored of my own opinions that I would disregard what others may think of them."

"And if the earth were to stand still, the appearance of the heavens would be very different."

"Therefore, when I perceived that these and similar doubts arose concerning the order of the parts of the universe and the symmetry of its structure, I began to be vexed that no more definite explanati…"

"For it is not the magnitude of the stars, but the magnitude of their distance from us, that causes them to appear small."